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Columbia Banking System

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FY2007 Annual Report · Columbia Banking System
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With our new Lacey and Bellingham offices opening in late fourth quarter, and welcoming the addition of Mt. Rainier and Town 

Center banks to our family during the third quarter, we currently have 55 branches in ten counties in Washington and Oregon. 

Columbia Bank has the number one share of the deposit market in Pierce County, and Bank of Astoria continues to maintain 

their number one status in their primary market of Clatsop County after 40 years of serving Northwest Oregon’s coastal 

communities.   Mt. Rainier Bank has 40% of the deposit market in their primary area on the Enumclaw plateau as well.  

These statistics (June, 2007 FDIC data), while gratifying, simply reflect the success we’ve achieved through maintaining our 

focus on our core values.  Our Columbia Bankers continue to enhance and deepen their relationships with our customers 

and with each other through their commitment to internal and external customer service.  

As we never tire of mentioning, our Columbia Bankers are the foundation for our success.  Recently, a non-profit group 

that surveys local consumers about various services conducted a customer service survey about local banks.  Columbia Bank 

was rated superior overall by 93% of our customers who responded to the survey. In order to maintain these results, we 

need to attract and retain the highest caliber of employees.   In 2007, NW Jobs announced that Columbia Bank was named 

as the favorite local large company in Pierce County.  We were also selected by the Puget Sound Business Journal as one 

of  Washington’s  Best  Workplaces,  and  by  Washington  Association  of  Businesses  as  one  of  the  Best  Places  to  Work.  Our 

customers truly notice the difference.

We received another honor in 2007 as well.  On September 10th, we had the wonderful opportunity to ring the closing bell 

at the NASDAQ Stock Market in New York.  It was very exciting to see the Columbia name up in lights in Times Square. 

The summer of 2008 will mark our 15th anniversary, and we believe we are well positioned for success in the coming years.  

As always, we remain committed to the core values which have been the foundation for our success.  Thank you for your 

continued support.

Sincerely,

William T. Weyerhaeuser

Melanie J. Dressel

Chairman of the Board,

Columbia Banking System Inc.

President and Chief Executive Officer

Columbia Banking System Inc.

SPANAWAY

Spanaway

17502 Pacific Ave 

TACOMA

13th & A

1301 A Street

84th & Pacific

201 S 84th St.

Allenmore

1959 S Union Avenue

Broadway Plaza

1102 Broadway Plaza

Old Town

2200 30th St.

Stadium

601 1st St.

Westgate

5727 21st St.

Martin Luther King,

1102 Martin Luther King, Jr. Way

UNIVERSITY PLACE

University Place

4221 Bridgeport Way W

WOODLAND

Woodland

782 Goerig St.

Columbia State Bank 

Oregon Branches

CLACKAMAS

Miramont Pointe

11520 SE Sunnyside Rd.

Springs at Clackamas Woods

14404 SE Webster Road

Sunnybrook

8440 SE Sunnybrook Blvd.

PORTLAND

82nd & King

10413 SE 82nd Avenue

Gateway

10735 NE Halsey St.

Mt. Rainier Bank

Auburn Way

2041 Auburn Way N

Black Diamond

31329 3rd Avenue

Buckley

29290 Hwy 410 E

Enumclaw

501 Roosevelt Avenue

Federal Way

33515 9th Avenue S

Maple Valley

23924 225th Way SE

Sumner

15104 Main Street E

Bank of Astoria

Astoria

1122 Duane Street

Cannon Beach

107 Sunset Blvd.

Manzanita

715 Laneda Avenue

Seaside

301 Avenue A

Warrenton

630 SE Marlin Avenue

Branch Locations

Columbia Bank

Washington Branches

AUBURN

Auburn  

25 16th St. NE

Forest Villa

2749 Auburn Way S

South Auburn

4101 A St. SE

BELLEVUE

Bellevue South

11225 SE 6th St.

Bellevue Way

10350 NE 10th St.

BELLINGHAM

Bellingham

115 W Kellogg Road

BONNEY LAKE

Bonney Lake

19925 State Route 410 E

EDGEWOOD-MILTON

Edgewood-Milton

1250 Meridian E

FEDERAL WAY

Federal Way

33370 Pacific Highway S

FIFE

Fife

1501 54th Avenue E

FIRCREST

Fircrest

2401 Mildred St. W

GIG HARBOR

Gig Harbor

5303 Pt. Fosdick Dr. NW

GIG HARBOR DOWNTOWN

3006 Judson St.

504 W Meeker

KENT

Kent 

LACEY

Lacey

655 Golf Club Place SE

LAKEWOOD

Lakewood

6202 Mount Tacoma Dr. SW

LONGVIEW

30th Avenue

2207 30th Avenue

Commerce

1338 Commerce Avenue

OLYMPIA

West Olympia

2820 Harrison Avenue NW

PORT ORCHARD

Port Orchard

228 Bravo Terrace

PUYALLUP

43rd & Meridian

4220 South Meridian

104th and Canyon

10321 Canyon Road E

176th & Meridian

17208 Meridian E

Puyallup

618 S Meridian St.

Summit

10409 Canyon Rd. E

REDMOND

Redmond

8201 164th Avenue NE

SEATTLE

2nd & Columbia Bank 

721 Second Avenue

1301 A Street

Tacoma, Washington 98402

253.305.1900 / 800.305.1905

ColumbiaBank.com

DIVERSIFICATION

PEOPLE

COMMUNITY

MARKETS

PROFITABILITY

2007 Annual Report

Dear Shareholder

2007 was truly a milestone year for your company. We reached over $3 billion in assets, $2.5 million in deposits and over $2 

billion in loans and expanded our branch locations through strategic acquisitions and de novo expansion. The foundation 

for these results was our continuing concentration on our core strategies and our focus on diversification; which has long 

been an important discipline for our company.  We believe diversification in our loan and deposit portfolios, diversification 

geographically and in our banking team all contribute to our long term success.  2007 was a year in which we were able to 

consistently demonstrate this quality in all aspects of our business.

We  had  strong  growth  in  loans,  which 

over-year.    We  maintain  a  healthy,  well 

help  us  to  minimize  both  interest  rate 

as  well  in  2007,  increasing  23%  from 

expected  pressure  on  our  net  interest 

we  were  pleased  with  our  continuing 

the year at a healthy 67% of our deposit 

outstanding  team  of  bankers  allows  us 

deposits  as  we  strengthen  relationships 

best  service  possible.  As  the  economy 

ASSETS

were  up  34%,  or  $574  million,  year-

diversified  loan  portfolio,  which  will 

and economic risk.  Total deposits grew 

year-end  2006.    To  help  manage  the 

margin as short-term rates fell rapidly, 

ability to attract core deposits, ending 

base.  Our broad branch network and 

to  maintain  this  strong  level  of  core 

with  our  customers  by  providing  the 

presents  increasing  challenges  going 

forward,  we  believe  our  emphasis  on 

diversification will serve us well.  

September, 10th 2007 

Times Square, New York

We  have  added  new  and  diverse  markets  and  communities,  further  strengthening  our  strong  retail  system.    While  the 

acquisitions of Mountain Bank Holding Company and Town Center Bancorp in July, 2007 significantly increased our assets, 

loans and deposits, our organic growth has been equally as important.   The table below illustrates the mix of organic growth 

compared to the growth resulting from our acquisitions.

ASSETS

LOANS

DEPOSITS

Beginning Balance at 12-31-2006

Acquired by Acquisition

Organic Growth

Ending Balance at 12-31-2007

$2,553

$360

$266

$3,179

$1,709

$287

$287

$2,283

$2,023

$305

$170

$2,498

In Millions

Our earnings for the year were $32.4 million, up from $32.1 million in 2006.  Diluted earnings per share for 2007 were 

$1.91 compared to $1.99 in the prior year. Revenue grew to $136 million from $122 million in 2006, with an 11% increase 

in net interest income.  These results include the financial consolidation of Mountain Bank Holding Company and Town 

Center  Bancorp  in  the  third  quarter  last  year.    The  results  also  reflect  a  $1.8  million,  one-time  non-cash  accrual  for 

litigation liabilities in the fourth quarter, required by our membership in the Visa USA network. We expect that our share 

of an anticipated Visa initial public offering will offset the recorded liabilities we recorded in 2007. 

 
With our new Lacey and Bellingham offices opening in late fourth quarter, and welcoming the addition of Mt. Rainier and Town 

Center banks to our family during the third quarter, we currently have 55 branches in ten counties in Washington and Oregon. 

Columbia Bank has the number one share of the deposit market in Pierce County, and Bank of Astoria continues to maintain 

their number one status in their primary market of Clatsop County after 40 years of serving Northwest Oregon’s coastal 

communities.   Mt. Rainier Bank has 40% of the deposit market in their primary area on the Enumclaw plateau as well.  

These statistics (June, 2007 FDIC data), while gratifying, simply reflect the success we’ve achieved through maintaining our 

focus on our core values.  Our Columbia Bankers continue to enhance and deepen their relationships with our customers 

and with each other through their commitment to internal and external customer service.  

As we never tire of mentioning, our Columbia Bankers are the foundation for our success.  Recently, a non-profit group 

that surveys local consumers about various services conducted a customer service survey about local banks.  Columbia Bank 

was rated superior overall by 93% of our customers who responded to the survey. In order to maintain these results, we 

need to attract and retain the highest caliber of employees.   In 2007, NW Jobs announced that Columbia Bank was named 

as the favorite local large company in Pierce County.  We were also selected by the Puget Sound Business Journal as one 

of  Washington’s  Best  Workplaces,  and  by  Washington  Association  of  Businesses  as  one  of  the  Best  Places  to  Work.  Our 

customers truly notice the difference.

We received another honor in 2007 as well.  On September 10th, we had the wonderful opportunity to ring the closing bell 

at the NASDAQ Stock Market in New York.  It was very exciting to see the Columbia name up in lights in Times Square. 

The summer of 2008 will mark our 15th anniversary, and we believe we are well positioned for success in the coming years.  

As always, we remain committed to the core values which have been the foundation for our success.  Thank you for your 

continued support.

Sincerely,

William T. Weyerhaeuser

Melanie J. Dressel

Chairman of the Board,

Columbia Banking System Inc.

President and Chief Executive Officer

Columbia Banking System Inc.

SPANAWAY

Spanaway

17502 Pacific Ave 

TACOMA

13th & A

1301 A Street

84th & Pacific

201 S 84th St.

Allenmore

1959 S Union Avenue

Broadway Plaza

1102 Broadway Plaza

Old Town

2200 30th St.

Stadium

601 1st St.

Westgate

5727 21st St.

Martin Luther King,

1102 Martin Luther King, Jr. Way

UNIVERSITY PLACE

University Place

4221 Bridgeport Way W

WOODLAND

Woodland

782 Goerig St.

Columbia State Bank 

Oregon Branches

CLACKAMAS

Miramont Pointe

11520 SE Sunnyside Rd.

Springs at Clackamas Woods

14404 SE Webster Road

Sunnybrook

8440 SE Sunnybrook Blvd.

PORTLAND

82nd & King

10413 SE 82nd Avenue

Gateway

10735 NE Halsey St.

Mt. Rainier Bank

Auburn Way

2041 Auburn Way N

Black Diamond

31329 3rd Avenue

Buckley

29290 Hwy 410 E

Enumclaw

501 Roosevelt Avenue

Federal Way

33515 9th Avenue S

Maple Valley

23924 225th Way SE

Sumner

15104 Main Street E

Bank of Astoria

Astoria

1122 Duane Street

Cannon Beach

107 Sunset Blvd.

Manzanita

715 Laneda Avenue

Seaside

301 Avenue A

Warrenton

630 SE Marlin Avenue

Branch Locations

Columbia Bank

Washington Branches

AUBURN

Auburn  

25 16th St. NE

Forest Villa

2749 Auburn Way S

South Auburn

4101 A St. SE

BELLEVUE

Bellevue South

11225 SE 6th St.

Bellevue Way

10350 NE 10th St.

BELLINGHAM

Bellingham

115 W Kellogg Road

BONNEY LAKE

Bonney Lake

19925 State Route 410 E

EDGEWOOD-MILTON

Edgewood-Milton

1250 Meridian E

FEDERAL WAY

Federal Way

33370 Pacific Highway S

FIFE

Fife

1501 54th Avenue E

FIRCREST

Fircrest

2401 Mildred St. W

GIG HARBOR

Gig Harbor

5303 Pt. Fosdick Dr. NW

GIG HARBOR DOWNTOWN

3006 Judson St.

504 W Meeker

KENT

Kent 

LACEY

Lacey

655 Golf Club Place SE

LAKEWOOD

Lakewood

6202 Mount Tacoma Dr. SW

LONGVIEW

30th Avenue

2207 30th Avenue

Commerce

1338 Commerce Avenue

OLYMPIA

West Olympia

2820 Harrison Avenue NW

PORT ORCHARD

Port Orchard

228 Bravo Terrace

PUYALLUP

43rd & Meridian

4220 South Meridian

104th and Canyon

10321 Canyon Road E

176th & Meridian

17208 Meridian E

Puyallup

618 S Meridian St.

Summit

10409 Canyon Rd. E

REDMOND

Redmond

8201 164th Avenue NE

SEATTLE

2nd & Columbia Bank 

721 Second Avenue

1301 A Street

Tacoma, Washington 98402

253.305.1900 / 800.305.1905

ColumbiaBank.com

DIVERSIFICATION

MARKETS

ASSETS

PEOPLE

COMMUNITY

PROFITABILITY

2007 Annual Report

Dear Shareholder

2007 was truly a milestone year for your company. We reached over $3 billion in assets, $2.5 million in deposits and over $2 
billion in loans and expanded our branch locations through strategic acquisitions and de novo expansion. The foundation 
for these results was our continuing concentration on our core strategies and our focus on diversification; which has long 
been an important discipline for our company.  We believe diversification in our loan and deposit portfolios, diversification 
geographically and in our banking team all contribute to our long term success.  2007 was a year in which we were able to 
consistently demonstrate this quality in all aspects of our business.

We  had  strong  growth  in  loans,  which 
over-year.    We  maintain  a  healthy,  well 
help  us  to  minimize  both  interest  rate 
as  well  in  2007,  increasing  23%  from 
expected  pressure  on  our  net  interest 
we  were  pleased  with  our  continuing 
the year at a healthy 67% of our deposit 
outstanding  team  of  bankers  allows  us 
deposits  as  we  strengthen  relationships 
best  service  possible.  As  the  economy 
forward,  we  believe  our  emphasis  on 

September, 10th 2007 
Times Square, New York

were  up  34%,  or  $574  million,  year-
diversified  loan  portfolio,  which  will 
and economic risk.  Total deposits grew 
year-end  2006.    To  help  manage  the 
margin as short-term rates fell rapidly, 
ability to attract core deposits, ending 
base.  Our broad branch network and 
to  maintain  this  strong  level  of  core 
with  our  customers  by  providing  the 
presents  increasing  challenges  going 

diversification will serve us well.  

We  have  added  new  and  diverse  markets  and  communities,  further  strengthening  our  strong  retail  system.    While  the 
acquisitions of Mountain Bank Holding Company and Town Center Bancorp in July, 2007 significantly increased our assets, 
loans and deposits, our organic growth has been equally as important.   The table below illustrates the mix of organic growth 
compared to the growth resulting from our acquisitions.

ASSETS

LOANS

DEPOSITS

Beginning Balance at 12-31-2006

Acquired by Acquisition

Organic Growth

Ending Balance at 12-31-2007

$2,553

$360

$266

$3,179

$1,709

$287

$287

$2,283

$2,023

$305

$170

$2,498

In Millions

Our earnings for the year were $32.4 million, up from $32.1 million in 2006.  Diluted earnings per share for 2007 were 
$1.91 compared to $1.99 in the prior year. Revenue grew to $136 million from $122 million in 2006, with an 11% increase 
in net interest income.  These results include the financial consolidation of Mountain Bank Holding Company and Town 
Center  Bancorp  in  the  third  quarter  last  year.    The  results  also  reflect  a  $1.8  million,  one-time  non-cash  accrual  for 
litigation liabilities in the fourth quarter, required by our membership in the Visa USA network. We expect that our share 
of an anticipated Visa initial public offering will offset the recorded liabilities we recorded in 2007. 

 
With our new Lacey and Bellingham offices opening in late fourth quarter, and welcoming the addition of Mt. Rainier and Town 
Center banks to our family during the third quarter, we currently have 55 branches in ten counties in Washington and Oregon. 

Columbia Bank has the number one share of the deposit market in Pierce County, and Bank of Astoria continues to maintain 
their number one status in their primary market of Clatsop County after 40 years of serving Northwest Oregon’s coastal 
communities.   Mt. Rainier Bank has 40% of the deposit market in their primary area on the Enumclaw plateau as well.  
These statistics (June, 2007 FDIC data), while gratifying, simply reflect the success we’ve achieved through maintaining our 
focus on our core values.  Our Columbia Bankers continue to enhance and deepen their relationships with our customers 
and with each other through their commitment to internal and external customer service.  

As we never tire of mentioning, our Columbia Bankers are the foundation for our success.  Recently, a non-profit group 
that surveys local consumers about various services conducted a customer service survey about local banks.  Columbia Bank 
was rated superior overall by 93% of our customers who responded to the survey. In order to maintain these results, we 
need to attract and retain the highest caliber of employees.   In 2007, NW Jobs announced that Columbia Bank was named 
as the favorite local large company in Pierce County.  We were also selected by the Puget Sound Business Journal as one 
of  Washington’s  Best  Workplaces,  and  by  Washington  Association  of  Businesses  as  one  of  the  Best  Places  to  Work.  Our 
customers truly notice the difference.

We received another honor in 2007 as well.  On September 10th, we had the wonderful opportunity to ring the closing bell 
at the NASDAQ Stock Market in New York.  It was very exciting to see the Columbia name up in lights in Times Square. 

The summer of 2008 will mark our 15th anniversary, and we believe we are well positioned for success in the coming years.  
As always, we remain committed to the core values which have been the foundation for our success.  Thank you for your 
continued support.

Sincerely,

William T. Weyerhaeuser

Melanie J. Dressel

Chairman of the Board,
Columbia Banking System Inc.

President and Chief Executive Officer
Columbia Banking System Inc.

DIVERSIFICATION

SPANAWAY

Spanaway

17502 Pacific Ave 

TACOMA

13th & A

1301 A Street

84th & Pacific

201 S 84th St.

Allenmore

1959 S Union Avenue

Broadway Plaza

1102 Broadway Plaza

Old Town

2200 30th St.

Stadium

601 1st St.

Westgate

5727 21st St.

Martin Luther King,

1102 Martin Luther King, Jr. Way

UNIVERSITY PLACE

University Place

4221 Bridgeport Way W

WOODLAND

Woodland

782 Goerig St.

Columbia State Bank 

Oregon Branches

CLACKAMAS

Miramont Pointe

11520 SE Sunnyside Rd.

Springs at Clackamas Woods

14404 SE Webster Road

Sunnybrook

8440 SE Sunnybrook Blvd.

PORTLAND

82nd & King

10413 SE 82nd Avenue

Gateway

10735 NE Halsey St.

Mt. Rainier Bank

Auburn Way

2041 Auburn Way N

Black Diamond

31329 3rd Avenue

Buckley

29290 Hwy 410 E

Enumclaw

501 Roosevelt Avenue

Federal Way

33515 9th Avenue S

Maple Valley

23924 225th Way SE

Sumner

15104 Main Street E

Bank of Astoria

Astoria

1122 Duane Street

Cannon Beach

107 Sunset Blvd.

Manzanita

715 Laneda Avenue

Seaside

301 Avenue A

Warrenton

630 SE Marlin Avenue

Branch Locations

Columbia Bank

Washington Branches

AUBURN

Auburn  

25 16th St. NE

Forest Villa

2749 Auburn Way S

South Auburn

4101 A St. SE

BELLEVUE

Bellevue South

11225 SE 6th St.

Bellevue Way

10350 NE 10th St.

BELLINGHAM

Bellingham

115 W Kellogg Road

BONNEY LAKE

Bonney Lake

19925 State Route 410 E

EDGEWOOD-MILTON

Edgewood-Milton

1250 Meridian E

FEDERAL WAY

Federal Way

33370 Pacific Highway S

FIFE

Fife

1501 54th Avenue E

FIRCREST

Fircrest

2401 Mildred St. W

GIG HARBOR

Gig Harbor

5303 Pt. Fosdick Dr. NW

GIG HARBOR DOWNTOWN

3006 Judson St.

504 W Meeker

KENT

Kent 

LACEY

Lacey

655 Golf Club Place SE

LAKEWOOD

Lakewood

6202 Mount Tacoma Dr. SW

LONGVIEW

30th Avenue

2207 30th Avenue

Commerce

1338 Commerce Avenue

OLYMPIA

West Olympia

2820 Harrison Avenue NW

PORT ORCHARD

Port Orchard

228 Bravo Terrace

PUYALLUP

43rd & Meridian

4220 South Meridian

104th and Canyon

10321 Canyon Road E

176th & Meridian

17208 Meridian E

Puyallup

618 S Meridian St.

Summit

10409 Canyon Rd. E

REDMOND

Redmond

8201 164th Avenue NE

SEATTLE

2nd & Columbia Bank 

721 Second Avenue

1301 A Street

Tacoma, Washington 98402

253.305.1900 / 800.305.1905

ColumbiaBank.com

MARKETS

PROFITABILITY

2007 Annual Report

PEOPLE

COMMUNITY

Dear Shareholder

2007 was truly a milestone year for your company. We reached over $3 billion in assets, $2.5 million in deposits and over $2 

billion in loans and expanded our branch locations through strategic acquisitions and de novo expansion. The foundation 

for these results was our continuing concentration on our core strategies and our focus on diversification; which has long 

been an important discipline for our company.  We believe diversification in our loan and deposit portfolios, diversification 

geographically and in our banking team all contribute to our long term success.  2007 was a year in which we were able to 

consistently demonstrate this quality in all aspects of our business.

We  had  strong  growth  in  loans,  which 

over-year.    We  maintain  a  healthy,  well 

help  us  to  minimize  both  interest  rate 

as  well  in  2007,  increasing  23%  from 

expected  pressure  on  our  net  interest 

we  were  pleased  with  our  continuing 

the year at a healthy 67% of our deposit 

outstanding  team  of  bankers  allows  us 

deposits  as  we  strengthen  relationships 

best  service  possible.  As  the  economy 

ASSETS

were  up  34%,  or  $574  million,  year-

diversified  loan  portfolio,  which  will 

and economic risk.  Total deposits grew 

year-end  2006.    To  help  manage  the 

margin as short-term rates fell rapidly, 

ability to attract core deposits, ending 

base.  Our broad branch network and 

to  maintain  this  strong  level  of  core 

with  our  customers  by  providing  the 

presents  increasing  challenges  going 

forward,  we  believe  our  emphasis  on 

diversification will serve us well.  

September, 10th 2007 

Times Square, New York

We  have  added  new  and  diverse  markets  and  communities,  further  strengthening  our  strong  retail  system.    While  the 

acquisitions of Mountain Bank Holding Company and Town Center Bancorp in July, 2007 significantly increased our assets, 

loans and deposits, our organic growth has been equally as important.   The table below illustrates the mix of organic growth 

compared to the growth resulting from our acquisitions.

ASSETS

LOANS

DEPOSITS

Beginning Balance at 12-31-2006

Acquired by Acquisition

Organic Growth

Ending Balance at 12-31-2007

$2,553

$360

$266

$3,179

$1,709

$287

$287

$2,283

$2,023

$305

$170

$2,498

In Millions

Our earnings for the year were $32.4 million, up from $32.1 million in 2006.  Diluted earnings per share for 2007 were 

$1.91 compared to $1.99 in the prior year. Revenue grew to $136 million from $122 million in 2006, with an 11% increase 

in net interest income.  These results include the financial consolidation of Mountain Bank Holding Company and Town 

Center  Bancorp  in  the  third  quarter  last  year.    The  results  also  reflect  a  $1.8  million,  one-time  non-cash  accrual  for 

litigation liabilities in the fourth quarter, required by our membership in the Visa USA network. We expect that our share 

of an anticipated Visa initial public offering will offset the recorded liabilities we recorded in 2007. 

 
Consolidated Financials

FOR THE YEAR
Net interest income 
Provision for loan and lease losses 
Noninterest income 
Noninterest expense 
Net Income 

PER SHARE
Net income (basic) 
Net income (diluted) 
Book value 

AVERAGES
Total assets 
Interest-earning assets 
Loans 
Securities 
Deposits 
Core deposits 
Shareholder’s equity 

FINANCIAL RATIOS
Net interest margin 
Return on average assets 
Return on average equity 
Efficiency ratio 
Average equity ot average assets 

AT YEAR-END
Total assets 
Loans 
Allowance for loan and lease losses 
Securities 
Deposits 
Core deposits 
Shareholder’s equity 

Full-time equivalent employees 
Banking offices 
Total nonperforming assets 

2007 

2006 

Change

$108,820 
$3,605 
$27,748 
$88,829 
$32,381 

$1.93 
$1.91 
$19.03 

$2,837,162 
$2,599,379 
$1,990,622 
$581,122 
$2,242,134 
$1,544,056 
$289,297 

4.35% 
1.14% 
11.19% 
61.33% 
10.20% 

$3,178,713 
$2,282,728 
$26,599 
$572,973 
$2,498,061 
$1,671,659 
$341,731 

775 
55 
$14,642 

$97,763 
$2,065 
$24,672 
$76,134 
$32,103 

$2.01 
$1.99 
$15.71 

$2,473,404 
$2,265.393 
$1,629,616 
$623,631 
$1,976,448 
$1,433,395 
$237,843 

4.49%
1.30%
13.50%
58.95%
9.62%

$2,553,131 
$1,708,962 
$20,182 
$605,133 
$2,023,351 
$1,473,701 
$252,347 

657 
40 
$3,480 

11%
75%
12%
17%
1%

-4%
-4%
21%

15%
15%
22%
-7%
13%
8%
22%

25%
34%
32%
-5%
23%
13%
35%

18%
38% 
321%

Net Income

Total Revenue

Assets

Deposits

Loans

$35,000 

$30,000 

$25,000 

$20,000 

$15,000 

$10,000 

$5,000 

2003 2004 2005 2006 2007

$140,000 

$120,000 

$100,000 

$80,000 

$60,000 

$40,000 

$20,000 

2003 2004 2005 2006 2007

$3,500 

$3,000 

$2,500 

$2,000 

$1,500 

$1,000 

$500 

2003

2004

2005

2006

2007

At Columbia, we recognize and celebrate 

the power of diversity – in the markets and 

communities we serve, our varied products, 

balanced mix of loans and deposits, and our 

team of remarkable bankers.  This core value 

of diversity enhances our ability to deliver the 

financial services our customers want, when 

and where they want them, and with the highest 

level of service possible.

Our  focus  is  on  being  the  community 

We offer the varied menu of relationship 

memberships, volunteer activities, and 

bank  in  every  community  we  serve.   

banking products and the sophistication of 

fund-raising,  Columbia’s  employees 

Columbia’s  strong  commitment  to 

a regional bank, while retaining the appeal 

strive  to  make  the  communities  they 

personalized  service,  varied  products 

and  service  level  of  a  community  bank. 

serve better places to live and work.  

and  our 

long-standing  community 

We continue to develop a business culture 

presence attracts experienced, talented 

in which customers are a high priority in 

We  believe  the  commitment  we  make 

bankers from a variety of backgrounds. 

every decision we make.

These  dedicated 

individuals,  work 

each  and  every  day  to  our  customers, 

our communities and our shareholders 

closely with our customers, emphasizing 

Our employees build strong relationships 

truly makes a difference.

personalized, local decision-making. 

within their communities. Through board 

Leading the Way

EXECUTIVE OFFICERS

Clockwise from left:  Kent L. Roberts, Executive Vice President, Human Resources 

Director; Mark W. Nelson, Executive Vice President, Chief Banking Officer;  Andrew 

McDonald, Executive Vice President, Chief Credit Officer; Gary R. Schminkey, 

Executive Vice President, Chief Financial Officer; Melanie J. Dressel, President & 

Chief Executive Officer, Columbia Banking System Inc. and Columbia Bank

Board of Directors

Clockwise from top:  John P. Folsom, Past President, Brown & Brown of Washington, 

Inc.; Thomas M. Hulbert, President and Chief Executive Officer, Hulco, Inc. and Winsor 

Corporation; James M. Will, President, Titus-Will Enterprises; Daniel C. Regis, Managing 

Director, Digital Partners; Melanie J. Dressel, President & Chief Executive Officer, 

Columbia Banking System and Columbia Bank; William T. Weyerhaeuser, Chairman 

of the Board, Columbia Banking System. Thomas L. Matson, Owner & President, Tom 

Matson Dodge; Donald Rodman, Owner and Executive Officer, Rodman Realty; 

Frederick M. Goldberg, Managing Partner, Goldberg Investments

CORPORATE HEADQUARTERS

REGULATORY & SECURITIES 

Columbia Banking System, Inc.

1301 A Street, Suite 800

P.O. Box 2156

Tacoma, WA  98401-2156

253.305.1900

800.305.1905

www.ColumbiaBank.com

INDEPENDENT AUDITORS 

Deloitte & Touche, LLP

MARKET MAKERS 

Goldman Sachs

Lehman Brothers Inc.

Keefe Bruyette and Woods, Inc.

Morgan Stanley & Co., Inc.

UBS Securities LLC

Knight Equity Markets LP

D.A. Davidson and Co.

COUNSEL  

Graham & Dunn PC

ANNUAL MEETING

Greater Tacoma Convention & Trade 

Center

1500 Broadway

Tacoma, Washington

STOCK LISTING 

Wednesday, April 23, 2008 at 1 p.m.

results, product information and service 

locations, access our home page on the 

World Wide Web at www.ColumbiaBank.

com.  You can also view or retrieve 

copies of Columbia’s financial reports on 

the internet by connecting to www.sec.

gov.  Immediate access to the Company’s 

quarterly earnings news releases via the 

internet is provided by Company News 

On Call at www.prnewswire.com.

Shareholders, media representatives, 

and other individuals seeking general 

information, additional copies of the annual 

report, Form 10-Q, or Form 10-K should 

Nasdaq Stock Markets under the symbol:  

COLB

FINANCIAL INFORMATION 

Columbia news and financial results are 

available through the Internet and mail.

INTERNET

For information about Columbia Banking 

System Inc., including news and financial 

contact:

JoAnne Coy

Vice President,

Corporate Communications

P.O. Box 2156, MS 3100

Tacoma, WA 98402-2156

Tel 253.305.1965

Fax 253.305.0317

E-mail jcoy@columbiabank.com

TRANSFER AGENT AND REGISTRAR

The Company’s common stock trades on 

American Stock Transfer & Trust Co.

the Nasdaq National market tier of The 

 
Consolidated Financials

Provision for loan and lease losses 

FOR THE YEAR

Net interest income 

Noninterest income 

Noninterest expense 

Net Income 

PER SHARE

Net income (basic) 

Net income (diluted) 

Book value 

AVERAGES

Total assets 

Interest-earning assets 

Loans 

Securities 

Deposits 

Core deposits 

Shareholder’s equity 

FINANCIAL RATIOS

Net interest margin 

Return on average assets 

Return on average equity 

Efficiency ratio 

Average equity ot average assets 

Allowance for loan and lease losses 

AT YEAR-END

Total assets 

Loans 

Securities 

Deposits 

Core deposits 

Shareholder’s equity 

Full-time equivalent employees 

Banking offices 

Total nonperforming assets 

2007 

2006 

Change

$108,820 

$3,605 

$27,748 

$88,829 

$32,381 

$1.93 

$1.91 

$19.03 

$2,837,162 

$2,599,379 

$1,990,622 

$581,122 

$2,242,134 

$1,544,056 

$289,297 

4.35% 

1.14% 

11.19% 

61.33% 

10.20% 

$3,178,713 

$2,282,728 

$26,599 

$572,973 

$2,498,061 

$1,671,659 

$341,731 

775 

55 

$14,642 

$97,763 

$2,065 

$24,672 

$76,134 

$32,103 

$2.01 

$1.99 

$15.71 

$2,473,404 

$2,265.393 

$1,629,616 

$623,631 

$1,976,448 

$1,433,395 

$237,843 

4.49%

1.30%

13.50%

58.95%

9.62%

$2,553,131 

$1,708,962 

$20,182 

$605,133 

$2,023,351 

$1,473,701 

$252,347 

657 

40 

$3,480 

11%

75%

12%

17%

1%

-4%

-4%

21%

15%

15%

22%

-7%

13%

8%

22%

25%

34%

32%

-5%

23%

13%

35%

18%

38% 

321%

Net Income

Total Revenue

Assets

Deposits

Loans

$35,000 

$30,000 

$25,000 

$20,000 

$15,000 

$10,000 

$5,000 

$140,000 

$120,000 

$100,000 

$80,000 

$60,000 

$40,000 

$20,000 

$3,500 

$3,000 

$2,500 

$2,000 

$1,500 

$1,000 

$500 

2003 2004 2005 2006 2007

2003 2004 2005 2006 2007

2003

2004

2005

2006

2007

At Columbia, we recognize and celebrate 

the power of diversity – in the markets and 

communities we serve, our varied products, 

balanced mix of loans and deposits, and our 

team of remarkable bankers.  This core value 

of diversity enhances our ability to deliver the 

financial services our customers want, when 

and where they want them, and with the highest 

level of service possible.

Our  focus  is  on  being  the  community 

We offer the varied menu of relationship 

memberships, volunteer activities, and 

bank  in  every  community  we  serve.   

banking products and the sophistication of 

fund-raising,  Columbia’s  employees 

Columbia’s  strong  commitment  to 

a regional bank, while retaining the appeal 

strive  to  make  the  communities  they 

personalized  service,  varied  products 

and  service  level  of  a  community  bank. 

serve better places to live and work.  

and  our 

long-standing  community 

We continue to develop a business culture 

presence attracts experienced, talented 

in which customers are a high priority in 

We  believe  the  commitment  we  make 

bankers from a variety of backgrounds. 

every decision we make.

These  dedicated 

individuals,  work 

each  and  every  day  to  our  customers, 

our communities and our shareholders 

closely with our customers, emphasizing 

Our employees build strong relationships 

truly makes a difference.

personalized, local decision-making. 

within their communities. Through board 

Leading the Way

EXECUTIVE OFFICERS

Clockwise from left:  Kent L. Roberts, Executive Vice President, Human Resources 

Director; Mark W. Nelson, Executive Vice President, Chief Banking Officer;  Andrew 

McDonald, Executive Vice President, Chief Credit Officer; Gary R. Schminkey, 

Executive Vice President, Chief Financial Officer; Melanie J. Dressel, President & 

Chief Executive Officer, Columbia Banking System Inc. and Columbia Bank

Board of Directors

Clockwise from top:  John P. Folsom, Past President, Brown & Brown of Washington, 

Inc.; Thomas M. Hulbert, President and Chief Executive Officer, Hulco, Inc. and Winsor 

Corporation; James M. Will, President, Titus-Will Enterprises; Daniel C. Regis, Managing 

Director, Digital Partners; Melanie J. Dressel, President & Chief Executive Officer, 

Columbia Banking System and Columbia Bank; William T. Weyerhaeuser, Chairman 

of the Board, Columbia Banking System. Thomas L. Matson, Owner & President, Tom 

Matson Dodge; Donald Rodman, Owner and Executive Officer, Rodman Realty; 

Frederick M. Goldberg, Managing Partner, Goldberg Investments

CORPORATE HEADQUARTERS

REGULATORY & SECURITIES 

Columbia Banking System, Inc.

1301 A Street, Suite 800

P.O. Box 2156

Tacoma, WA  98401-2156

253.305.1900

800.305.1905

www.ColumbiaBank.com

INDEPENDENT AUDITORS 

Deloitte & Touche, LLP

MARKET MAKERS 

Goldman Sachs

Lehman Brothers Inc.

Keefe Bruyette and Woods, Inc.

Morgan Stanley & Co., Inc.

UBS Securities LLC

Knight Equity Markets LP

D.A. Davidson and Co.

COUNSEL  

Graham & Dunn PC

ANNUAL MEETING

Greater Tacoma Convention & Trade 

Center

1500 Broadway

Tacoma, Washington

STOCK LISTING 

Wednesday, April 23, 2008 at 1 p.m.

results, product information and service 

locations, access our home page on the 

World Wide Web at www.ColumbiaBank.

com.  You can also view or retrieve 

copies of Columbia’s financial reports on 

the internet by connecting to www.sec.

gov.  Immediate access to the Company’s 

quarterly earnings news releases via the 

internet is provided by Company News 

On Call at www.prnewswire.com.

Shareholders, media representatives, 

and other individuals seeking general 

information, additional copies of the annual 

report, Form 10-Q, or Form 10-K should 

Nasdaq Stock Markets under the symbol:  

COLB

FINANCIAL INFORMATION 

Columbia news and financial results are 

available through the Internet and mail.

INTERNET

For information about Columbia Banking 

System Inc., including news and financial 

contact:

JoAnne Coy

Vice President,

Corporate Communications

P.O. Box 2156, MS 3100

Tacoma, WA 98402-2156

Tel 253.305.1965

Fax 253.305.0317

E-mail jcoy@columbiabank.com

TRANSFER AGENT AND REGISTRAR

The Company’s common stock trades on 

American Stock Transfer & Trust Co.

the Nasdaq National market tier of The 

 
Consolidated Financials

Provision for loan and lease losses 

FOR THE YEAR

Net interest income 

Noninterest income 

Noninterest expense 

Net Income 

PER SHARE

Net income (basic) 

Net income (diluted) 

Book value 

AVERAGES

Total assets 

Interest-earning assets 

Loans 

Securities 

Deposits 

Core deposits 

Shareholder’s equity 

FINANCIAL RATIOS

Net interest margin 

Return on average assets 

Return on average equity 

Efficiency ratio 

Average equity ot average assets 

Allowance for loan and lease losses 

AT YEAR-END

Total assets 

Loans 

Securities 

Deposits 

Core deposits 

Shareholder’s equity 

Full-time equivalent employees 

Banking offices 

Total nonperforming assets 

2007 

2006 

Change

$108,820 

$3,605 

$27,748 

$88,829 

$32,381 

$1.93 

$1.91 

$19.03 

$2,837,162 

$2,599,379 

$1,990,622 

$581,122 

$2,242,134 

$1,544,056 

$289,297 

4.35% 

1.14% 

11.19% 

61.33% 

10.20% 

$3,178,713 

$2,282,728 

$26,599 

$572,973 

$2,498,061 

$1,671,659 

$341,731 

775 

55 

$14,642 

$97,763 

$2,065 

$24,672 

$76,134 

$32,103 

$2.01 

$1.99 

$15.71 

$2,473,404 

$2,265.393 

$1,629,616 

$623,631 

$1,976,448 

$1,433,395 

$237,843 

4.49%

1.30%

13.50%

58.95%

9.62%

$2,553,131 

$1,708,962 

$20,182 

$605,133 

$2,023,351 

$1,473,701 

$252,347 

657 

40 

$3,480 

11%

75%

12%

17%

1%

-4%

-4%

21%

15%

15%

22%

-7%

13%

8%

22%

25%

34%

32%

-5%

23%

13%

35%

18%

38% 

321%

Net Income

Total Revenue

Assets

Deposits

Loans

$35,000 

$30,000 

$25,000 

$20,000 

$15,000 

$10,000 

$5,000 

$140,000 

$120,000 

$100,000 

$80,000 

$60,000 

$40,000 

$20,000 

$3,500 

$3,000 

$2,500 

$2,000 

$1,500 

$1,000 

$500 

2003 2004 2005 2006 2007

2003 2004 2005 2006 2007

2003

2004

2005

2006

2007

At Columbia, we recognize and celebrate 

the power of diversity – in the markets and 

communities we serve, our varied products, 

balanced mix of loans and deposits, and our 

team of remarkable bankers.  This core value 

of diversity enhances our ability to deliver the 

financial services our customers want, when 

and where they want them, and with the highest 

level of service possible.

Our  focus  is  on  being  the  community 

We offer the varied menu of relationship 

memberships, volunteer activities, and 

bank  in  every  community  we  serve.   

banking products and the sophistication of 

fund-raising,  Columbia’s  employees 

Columbia’s  strong  commitment  to 

a regional bank, while retaining the appeal 

strive  to  make  the  communities  they 

personalized  service,  varied  products 

and  service  level  of  a  community  bank. 

serve better places to live and work.  

and  our 

long-standing  community 

We continue to develop a business culture 

presence attracts experienced, talented 

in which customers are a high priority in 

We  believe  the  commitment  we  make 

bankers from a variety of backgrounds. 

every decision we make.

These  dedicated 

individuals,  work 

each  and  every  day  to  our  customers, 

our communities and our shareholders 

closely with our customers, emphasizing 

Our employees build strong relationships 

truly makes a difference.

personalized, local decision-making. 

within their communities. Through board 

Leading the Way

EXECUTIVE OFFICERS

Clockwise from left:  Kent L. Roberts, Executive Vice President, Human Resources 

Director; Mark W. Nelson, Executive Vice President, Chief Banking Officer;  Andrew 

McDonald, Executive Vice President, Chief Credit Officer; Gary R. Schminkey, 

Executive Vice President, Chief Financial Officer; Melanie J. Dressel, President & 

Chief Executive Officer, Columbia Banking System Inc. and Columbia Bank

Board of Directors

Clockwise from top:  John P. Folsom, Past President, Brown & Brown of Washington, 

Inc.; Thomas M. Hulbert, President and Chief Executive Officer, Hulco, Inc. and Winsor 

Corporation; James M. Will, President, Titus-Will Enterprises; Daniel C. Regis, Managing 

Director, Digital Partners; Melanie J. Dressel, President & Chief Executive Officer, 

Columbia Banking System and Columbia Bank; William T. Weyerhaeuser, Chairman 

of the Board, Columbia Banking System. Thomas L. Matson, Owner & President, Tom 

Matson Dodge; Donald Rodman, Owner and Executive Officer, Rodman Realty; 

Frederick M. Goldberg, Managing Partner, Goldberg Investments

CORPORATE HEADQUARTERS

REGULATORY & SECURITIES 

Columbia Banking System, Inc.

1301 A Street, Suite 800

P.O. Box 2156

Tacoma, WA  98401-2156

253.305.1900

800.305.1905

www.ColumbiaBank.com

INDEPENDENT AUDITORS 

Deloitte & Touche, LLP

MARKET MAKERS 

Goldman Sachs

Lehman Brothers Inc.

Keefe Bruyette and Woods, Inc.

Morgan Stanley & Co., Inc.

UBS Securities LLC

Knight Equity Markets LP

D.A. Davidson and Co.

COUNSEL  

Graham & Dunn PC

ANNUAL MEETING

Greater Tacoma Convention & Trade 

Center

1500 Broadway

Tacoma, Washington

STOCK LISTING 

Wednesday, April 23, 2008 at 1 p.m.

results, product information and service 

locations, access our home page on the 

World Wide Web at www.ColumbiaBank.

com.  You can also view or retrieve 

copies of Columbia’s financial reports on 

the internet by connecting to www.sec.

gov.  Immediate access to the Company’s 

quarterly earnings news releases via the 

internet is provided by Company News 

On Call at www.prnewswire.com.

Shareholders, media representatives, 

and other individuals seeking general 

information, additional copies of the annual 

report, Form 10-Q, or Form 10-K should 

Nasdaq Stock Markets under the symbol:  

COLB

FINANCIAL INFORMATION 

Columbia news and financial results are 

available through the Internet and mail.

INTERNET

For information about Columbia Banking 

System Inc., including news and financial 

contact:

JoAnne Coy

Vice President,

Corporate Communications

P.O. Box 2156, MS 3100

Tacoma, WA 98402-2156

Tel 253.305.1965

Fax 253.305.0317

E-mail jcoy@columbiabank.com

TRANSFER AGENT AND REGISTRAR

The Company’s common stock trades on 

American Stock Transfer & Trust Co.

the Nasdaq National market tier of The 

 
Consolidated Financials

Provision for loan and lease losses 

FOR THE YEAR

Net interest income 

Noninterest income 

Noninterest expense 

Net Income 

PER SHARE

Net income (basic) 

Net income (diluted) 

Book value 

AVERAGES

Total assets 

Interest-earning assets 

Loans 

Securities 

Deposits 

Core deposits 

Shareholder’s equity 

FINANCIAL RATIOS

Net interest margin 

Return on average assets 

Return on average equity 

Efficiency ratio 

Average equity ot average assets 

Allowance for loan and lease losses 

AT YEAR-END

Total assets 

Loans 

Securities 

Deposits 

Core deposits 

Shareholder’s equity 

Full-time equivalent employees 

Banking offices 

Total nonperforming assets 

2007 

2006 

Change

$108,820 

$3,605 

$27,748 

$88,829 

$32,381 

$1.93 

$1.91 

$19.03 

$2,837,162 

$2,599,379 

$1,990,622 

$581,122 

$2,242,134 

$1,544,056 

$289,297 

4.35% 

1.14% 

11.19% 

61.33% 

10.20% 

$3,178,713 

$2,282,728 

$26,599 

$572,973 

$2,498,061 

$1,671,659 

$341,731 

775 

55 

$14,642 

$97,763 

$2,065 

$24,672 

$76,134 

$32,103 

$2.01 

$1.99 

$15.71 

$2,473,404 

$2,265.393 

$1,629,616 

$623,631 

$1,976,448 

$1,433,395 

$237,843 

4.49%

1.30%

13.50%

58.95%

9.62%

$2,553,131 

$1,708,962 

$20,182 

$605,133 

$2,023,351 

$1,473,701 

$252,347 

657 

40 

$3,480 

11%

75%

12%

17%

1%

-4%

-4%

21%

15%

15%

22%

-7%

13%

8%

22%

25%

34%

32%

-5%

23%

13%

35%

18%

38% 

321%

Net Income

Total Revenue

Assets

Deposits

Loans

$35,000 

$30,000 

$25,000 

$20,000 

$15,000 

$10,000 

$5,000 

$140,000 

$120,000 

$100,000 

$80,000 

$60,000 

$40,000 

$20,000 

$3,500 

$3,000 

$2,500 

$2,000 

$1,500 

$1,000 

$500 

2003 2004 2005 2006 2007

2003 2004 2005 2006 2007

2003

2004

2005

2006

2007

At Columbia, we recognize and celebrate 

the power of diversity – in the markets and 

communities we serve, our varied products, 

balanced mix of loans and deposits, and our 

team of remarkable bankers.  This core value 

of diversity enhances our ability to deliver the 

financial services our customers want, when 

and where they want them, and with the highest 

level of service possible.

Our  focus  is  on  being  the  community 

We offer the varied menu of relationship 

memberships, volunteer activities, and 

bank  in  every  community  we  serve.   

banking products and the sophistication of 

fund-raising,  Columbia’s  employees 

Columbia’s  strong  commitment  to 

a regional bank, while retaining the appeal 

strive  to  make  the  communities  they 

personalized  service,  varied  products 

and  service  level  of  a  community  bank. 

serve better places to live and work.  

and  our 

long-standing  community 

We continue to develop a business culture 

presence attracts experienced, talented 

in which customers are a high priority in 

We  believe  the  commitment  we  make 

bankers from a variety of backgrounds. 

every decision we make.

These  dedicated 

individuals,  work 

each  and  every  day  to  our  customers, 

our communities and our shareholders 

closely with our customers, emphasizing 

Our employees build strong relationships 

truly makes a difference.

personalized, local decision-making. 

within their communities. Through board 

Leading the Way

EXECUTIVE OFFICERS
Clockwise from left:  Kent L. Roberts, Executive Vice President, Human Resources 
Director; Mark W. Nelson, Executive Vice President, Chief Banking Officer;  Andrew 
McDonald, Executive Vice President, Chief Credit Officer; Gary R. Schminkey, 
Executive Vice President, Chief Financial Officer; Melanie J. Dressel, President & 
Chief Executive Officer, Columbia Banking System Inc. and Columbia Bank

Board of Directors
Clockwise from top:  John P. Folsom, Past President, Brown & Brown of Washington, 
Inc.; Thomas M. Hulbert, President and Chief Executive Officer, Hulco, Inc. and Winsor 
Corporation; James M. Will, President, Titus-Will Enterprises; Daniel C. Regis, Managing 
Director, Digital Partners; Melanie J. Dressel, President & Chief Executive Officer, 
Columbia Banking System and Columbia Bank; William T. Weyerhaeuser, Chairman 
of the Board, Columbia Banking System. Thomas L. Matson, Owner & President, Tom 
Matson Dodge; Donald Rodman, Owner and Executive Officer, Rodman Realty; 
Frederick M. Goldberg, Managing Partner, Goldberg Investments

CORPORATE HEADQUARTERS
Columbia Banking System, Inc.
1301 A Street, Suite 800
P.O. Box 2156
Tacoma, WA  98401-2156
253.305.1900
800.305.1905
www.ColumbiaBank.com

INDEPENDENT AUDITORS 
Deloitte & Touche, LLP

TRANSFER AGENT AND REGISTRAR
American Stock Transfer & Trust Co.

MARKET MAKERS 
Goldman Sachs
Lehman Brothers Inc.
Keefe Bruyette and Woods, Inc.
Morgan Stanley & Co., Inc.
UBS Securities LLC
Knight Equity Markets LP
D.A. Davidson and Co.

REGULATORY & SECURITIES 
COUNSEL  
Graham & Dunn PC

ANNUAL MEETING
Greater Tacoma Convention & Trade 
Center
1500 Broadway
Tacoma, Washington
Wednesday, April 23, 2008 at 1 p.m.

STOCK LISTING 
The Company’s common stock trades on 
the Nasdaq National market tier of The 
Nasdaq Stock Markets under the symbol:  
COLB

FINANCIAL INFORMATION 
Columbia news and financial results are 
available through the Internet and mail.

INTERNET
For information about Columbia Banking 
System Inc., including news and financial 

results, product information and service 
locations, access our home page on the 
World Wide Web at www.ColumbiaBank.
com.  You can also view or retrieve 
copies of Columbia’s financial reports on 
the internet by connecting to www.sec.
gov.  Immediate access to the Company’s 
quarterly earnings news releases via the 
internet is provided by Company News 
On Call at www.prnewswire.com.
Shareholders, media representatives, 
and other individuals seeking general 
information, additional copies of the annual 
report, Form 10-Q, or Form 10-K should 
contact:

JoAnne Coy
Vice President,
Corporate Communications
P.O. Box 2156, MS 3100
Tacoma, WA 98402-2156
Tel 253.305.1965
Fax 253.305.0317
E-mail jcoy@columbiabank.com

 
With our new Lacey and Bellingham offices opening in late fourth quarter, and welcoming the addition of Mt. Rainier and Town 

Center banks to our family during the third quarter, we currently have 55 branches in ten counties in Washington and Oregon. 

Columbia Bank has the number one share of the deposit market in Pierce County, and Bank of Astoria continues to maintain 

their number one status in their primary market of Clatsop County after 40 years of serving Northwest Oregon’s coastal 

communities.   Mt. Rainier Bank has 40% of the deposit market in their primary area on the Enumclaw plateau as well.  

These statistics (June, 2007 FDIC data), while gratifying, simply reflect the success we’ve achieved through maintaining our 

focus on our core values.  Our Columbia Bankers continue to enhance and deepen their relationships with our customers 

and with each other through their commitment to internal and external customer service.  

As we never tire of mentioning, our Columbia Bankers are the foundation for our success.  Recently, a non-profit group 

that surveys local consumers about various services conducted a customer service survey about local banks.  Columbia Bank 

was rated superior overall by 93% of our customers who responded to the survey. In order to maintain these results, we 

need to attract and retain the highest caliber of employees.   In 2007, NW Jobs announced that Columbia Bank was named 

as the favorite local large company in Pierce County.  We were also selected by the Puget Sound Business Journal as one 

of  Washington’s  Best  Workplaces,  and  by  Washington  Association  of  Businesses  as  one  of  the  Best  Places  to  Work.  Our 

customers truly notice the difference.

We received another honor in 2007 as well.  On September 10th, we had the wonderful opportunity to ring the closing bell 

at the NASDAQ Stock Market in New York.  It was very exciting to see the Columbia name up in lights in Times Square. 

The summer of 2008 will mark our 15th anniversary, and we believe we are well positioned for success in the coming years.  

As always, we remain committed to the core values which have been the foundation for our success.  Thank you for your 

continued support.

Sincerely,

William T. Weyerhaeuser

Melanie J. Dressel

Chairman of the Board,

Columbia Banking System Inc.

President and Chief Executive Officer

Columbia Banking System Inc.

DIVERSIFICATION

SPANAWAY
Spanaway
17502 Pacific Ave 

TACOMA
13th & A
1301 A Street

84th & Pacific
201 S 84th St.

Allenmore
1959 S Union Avenue

Broadway Plaza
1102 Broadway Plaza

Martin Luther King,
1102 Martin Luther King, Jr. Way

Old Town
2200 30th St.

Stadium
601 1st St.

Westgate
5727 21st St.

UNIVERSITY PLACE
University Place
4221 Bridgeport Way W

WOODLAND
Woodland
782 Goerig St.

Columbia State Bank 
Oregon Branches

CLACKAMAS
Miramont Pointe
11520 SE Sunnyside Rd.

Springs at Clackamas Woods
14404 SE Webster Road

Sunnybrook
8440 SE Sunnybrook Blvd.

PORTLAND

82nd & King
10413 SE 82nd Avenue

Gateway
10735 NE Halsey St.

Mt. Rainier Bank

Auburn Way
2041 Auburn Way N

Black Diamond
31329 3rd Avenue

Buckley
29290 Hwy 410 E

Enumclaw
501 Roosevelt Avenue

Federal Way
33515 9th Avenue S

Maple Valley
23924 225th Way SE

Sumner
15104 Main Street E

Bank of Astoria

Astoria
1122 Duane Street

Cannon Beach
107 Sunset Blvd.

Manzanita
715 Laneda Avenue

Seaside
301 Avenue A

Warrenton
630 SE Marlin Avenue

Branch Locations

Columbia Bank
Washington Branches

AUBURN
Auburn  
25 16th St. NE

Forest Villa
2749 Auburn Way S

South Auburn
4101 A St. SE

BELLEVUE
Bellevue South
11225 SE 6th St.

Bellevue Way
10350 NE 10th St.

BELLINGHAM
Bellingham
115 W Kellogg Road

BONNEY LAKE
Bonney Lake
19925 State Route 410 E

EDGEWOOD-MILTON
Edgewood-Milton
1250 Meridian E

FEDERAL WAY
Federal Way
33370 Pacific Highway S

FIFE
Fife
1501 54th Avenue E

FIRCREST
Fircrest
2401 Mildred St. W

GIG HARBOR
Gig Harbor
5303 Pt. Fosdick Dr. NW

GIG HARBOR DOWNTOWN
3006 Judson St.

KENT
Kent 
504 W Meeker

LACEY
Lacey
655 Golf Club Place SE

LAKEWOOD
Lakewood
6202 Mount Tacoma Dr. SW

LONGVIEW
30th Avenue
2207 30th Avenue

Commerce
1338 Commerce Avenue

OLYMPIA
West Olympia
2820 Harrison Avenue NW

PORT ORCHARD
Port Orchard
228 Bravo Terrace

PUYALLUP
43rd & Meridian
4220 South Meridian

104th and Canyon
10321 Canyon Road E

176th & Meridian
17208 Meridian E

Puyallup
618 S Meridian St.

Summit
10409 Canyon Rd. E

REDMOND
Redmond
8201 164th Avenue NE

SEATTLE
2nd & Columbia Bank 
721 Second Avenue

1301 A Street
Tacoma, Washington 98402
253.305.1900 / 800.305.1905
ColumbiaBank.com

MARKETS

PROFITABILITY

2007 Annual Report

PEOPLE

COMMUNITY

Dear Shareholder

2007 was truly a milestone year for your company. We reached over $3 billion in assets, $2.5 million in deposits and over $2 

billion in loans and expanded our branch locations through strategic acquisitions and de novo expansion. The foundation 

for these results was our continuing concentration on our core strategies and our focus on diversification; which has long 

been an important discipline for our company.  We believe diversification in our loan and deposit portfolios, diversification 

geographically and in our banking team all contribute to our long term success.  2007 was a year in which we were able to 

consistently demonstrate this quality in all aspects of our business.

We  had  strong  growth  in  loans,  which 

over-year.    We  maintain  a  healthy,  well 

help  us  to  minimize  both  interest  rate 

as  well  in  2007,  increasing  23%  from 

expected  pressure  on  our  net  interest 

we  were  pleased  with  our  continuing 

the year at a healthy 67% of our deposit 

outstanding  team  of  bankers  allows  us 

deposits  as  we  strengthen  relationships 

best  service  possible.  As  the  economy 

ASSETS

were  up  34%,  or  $574  million,  year-

diversified  loan  portfolio,  which  will 

and economic risk.  Total deposits grew 

year-end  2006.    To  help  manage  the 

margin as short-term rates fell rapidly, 

ability to attract core deposits, ending 

base.  Our broad branch network and 

to  maintain  this  strong  level  of  core 

with  our  customers  by  providing  the 

presents  increasing  challenges  going 

forward,  we  believe  our  emphasis  on 

diversification will serve us well.  

September, 10th 2007 

Times Square, New York

We  have  added  new  and  diverse  markets  and  communities,  further  strengthening  our  strong  retail  system.    While  the 

acquisitions of Mountain Bank Holding Company and Town Center Bancorp in July, 2007 significantly increased our assets, 

loans and deposits, our organic growth has been equally as important.   The table below illustrates the mix of organic growth 

compared to the growth resulting from our acquisitions.

ASSETS

LOANS

DEPOSITS

Beginning Balance at 12-31-2006

Acquired by Acquisition

Organic Growth

Ending Balance at 12-31-2007

$2,553

$360

$266

$3,179

$1,709

$287

$287

$2,283

$2,023

$305

$170

$2,498

In Millions

Our earnings for the year were $32.4 million, up from $32.1 million in 2006.  Diluted earnings per share for 2007 were 

$1.91 compared to $1.99 in the prior year. Revenue grew to $136 million from $122 million in 2006, with an 11% increase 

in net interest income.  These results include the financial consolidation of Mountain Bank Holding Company and Town 

Center  Bancorp  in  the  third  quarter  last  year.    The  results  also  reflect  a  $1.8  million,  one-time  non-cash  accrual  for 

litigation liabilities in the fourth quarter, required by our membership in the Visa USA network. We expect that our share 

of an anticipated Visa initial public offering will offset the recorded liabilities we recorded in 2007. 

 
Diversification

mArkets

Assets

PeoPle

Community

ProfitAbility

2007 Annual Report and Form 10-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

È ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES

EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2007 or
‘ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES

EXCHANGE ACT OF 1934

Commission File Number 0-20288

COLUMBIA BANKING SYSTEM, INC.

(Exact name of registrant as specified in its charter)

Washington
(State or other jurisdiction of
incorporation or organization)

91-1422237
(I.R.S. Employer
Identification Number)

1301 “A” Street
Tacoma, Washington 98402
(Address of principal executive offices) (Zip code)

Registrant’s Telephone Number, Including Area Code: (253) 305-1900

Securities Registered Pursuant to Section 12(b) of the Act:

Common Stock, No Par Value
(Title of class)

Securities Registered Pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities

Act. Yes ‘ No È

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the

Act. Yes ‘ No È

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the
Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required
to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes È No ‘

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (17 C.F.R. 229.405) is

not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. È

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer.

See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act (check one):

‘ Large Accelerated Filer

È Accelerated Filer

‘ Non-accelerated Filer

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange

Act). Yes ‘ No È

The aggregate market value of Common Stock held by non-affiliates of the registrant at June 30, 2007 was

$454,397,522 based on the closing sale price of the Common Stock on that date.

The number of shares of registrant’s Common Stock outstanding at January 31, 2008 was 17,979,578.

DOCUMENTS INCORPORATED BY REFERENCE:

Portions of the Registrant’s definitive 2008 Annual Meeting Proxy Statement Dated March 17, 2008 . . . . . . . . . . . . Part III

COLUMBIA BANKING SYSTEM, INC.
FORM 10-K ANNUAL REPORT
DECEMBER 31, 2007

TABLE OF CONTENTS

PART I

Item 1.
Business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 1A. Risk Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 1B. Unresolved Staff Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 2.
Legal Proceedings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 3.
Submission of Matters to a Vote of Security Holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 4.

PART II

Item 5. Market for the Registrant’s Common Equity, Related Stockholder Matters, and Issuer Purchase

of Equity Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 6.
Selected Financial Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operation . . . . . .
Item 7A. Quantitative and Qualitative Disclosures About Market Risk . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 8.
Financial Statements and Supplementary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changes in and Disagreements With Accountants on Accounting and Financial Disclosure . . . . .
Item 9.
Item 9A. Controls and Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 9B. Other Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PART III

Item 10. Directors, Executive Officers and Corporate Governance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 11. Executive Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 12.

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder

Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 13. Certain Relationships and Related Transactions, and Director Independence . . . . . . . . . . . . . . . . .
Principal Accounting Fees and Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 14.

Item 15. Exhibits, Financial Statement Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Signatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index to Exhibits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PART IV

3
14
15
15
15
15

16
18
22
45
48
82
82
85

86
86

86
86
86

87

88
89

2

NOTE REGARDING FORWARD LOOKING STATEMENTS

This Annual Report on Form 10-K may be deemed to include forward looking statements, which

management believes to be a benefit to shareholders. These forward looking statements describe
management’s expectations regarding future events and developments such as future operating results,
growth in loans and deposits, continued success of our style of banking and the strength of the local
economy. The words “will,” “believe,” “expect,” “should,” and “anticipate” and words of similar
construction are intended in part to help identify forward looking statements. Future events are difficult to
predict, and the expectations described above are necessarily subject to risk and uncertainty that may
cause actual results to differ materially and adversely. In addition to discussions about risks and
uncertainties set forth from time to time in our filings with the SEC, factors that may cause actual results
to differ materially from those contemplated by such forward looking statements include, among others,
the following possibilities: (1) local and national economic conditions are less favorable than expected or
have a more direct and pronounced effect on us than expected and adversely affect our ability to continue
internal growth at historical rates and maintain the quality of our earning assets; (2) a continued decline in
the housing/real estate market; (3) changes in interest rates significantly reduce interest margins and
negatively affect funding sources; (4) deterioration of credit quality that could, among other things,
increase defaults and delinquency risks in the Banks’ loan portfolios; (5) projected business increases
following strategic expansion or opening or acquiring new branches are lower than expected;
(6) competitive pressure among financial institutions increases significantly; (7) legislation or regulatory
requirements or changes adversely affect the businesses in which we are engaged; and (8) our ability to
realize the efficiencies we expect to receive from our investments in personnel, acquisitions and
infrastructure.

ITEM 1. BUSINESS

General

PART I

Columbia Banking System, Inc. (referred to in this report as “we,” “our,” and “the Company”) is a

registered bank holding company whose wholly owned banking subsidiaries, Columbia State Bank (“Columbia
Bank”) and Bank of Astoria (“Astoria”), conduct full-service commercial banking business in the states of
Washington and Oregon, respectively. Headquartered in Tacoma, Washington, we provide a full range of
banking services to small and medium-sized businesses, professionals and other individuals.

The Company was originally organized in 1988 under the name First Federal Corporation, which was later
named Columbia Savings Bank. In 1990, an investor group acquired a controlling interest in the Company and a
second corporation, Columbia National Bankshares, Inc. (“CNBI”), and CNBI’s sole banking subsidiary,
Columbia National Bank. In 1993, the Company was reorganized to take advantage of commercial banking
business opportunities in our principal market area. The opportunities to capture commercial banking market
share were due to increased consolidations of banks, primarily through acquisitions by out-of-state holding
companies, which created dislocation of customers. As part of the reorganization, CNBI was merged into the
Company and Columbia National Bank was merged into the then newly chartered Columbia Bank. In 1994,
Columbia Savings Bank was merged into Columbia Bank. We have grown from four branch offices at January 1,
1993 to 55 branch offices at December 31, 2007.

Recent Acquisitions

On July 23, 2007, the Company completed its acquisition of Mountain Bank Holding Company

(“Mt. Rainier”), the parent company of Mt. Rainier National Bank, Enumclaw, Washington. Mt. Rainier was
merged into the Company and Mt. Rainier National Bank was merged into Columbia Bank doing business as Mt.
Rainier Bank. The results of Mt. Rainier Bank’s operations are included in those of Columbia Bank starting on
July 23, 2007.

3

On July 23, 2007, the Company completed its acquisition of Town Center Bancorp (“Town Center”), the
parent company of Town Center Bank, Portland, Oregon. Town Center was merged into the Company and Town
Center Bank was merged into Columbia Bank. The results of Town Center Bank’s operations are included in
those of Columbia Bank starting on July 23, 2007.

On October 1, 2004, the Company completed its acquisition of Astoria, an Oregon state-chartered

commercial bank headquartered in Astoria, Oregon. The acquisition was accounted for as a purchase and
Astoria’s results of operations are included in our results beginning October 1, 2004. Astoria operates as a
separate banking subsidiary of the Company and has five full service branch offices located within Clatsop and
Tillamook Counties, along the northern Oregon coast. The deposits of Astoria are insured in whole or in part by
the FDIC. Astoria is subject to regulation by the FDIC and the State of Oregon Department of Consumer and
Business Services Division of Finance and Corporate Securities. Although Astoria is not a member of the Federal
Reserve System, the Board of Governors of the Federal Reserve System has certain supervisory authority over
the Company, which can also affect Astoria. In February 2008, we filed an application with the Federal Deposit
Insurance Corporation (the “FDIC”) to merge Astoria into Columbia Bank, with Astoria continuing to do
business as Bank of Astoria subsequent to the merger.

Our largest wholly owned banking subsidiary, Columbia Bank, has 50 banking offices located in the
Tacoma metropolitan area and contiguous parts of the Puget Sound region of Washington State, as well as the
Longview and Woodland communities in southwestern Washington State and in the Portland, Oregon area.
Included in Columbia Bank are former branches of Mt. Rainier National Bank, doing business as Mt. Rainier
Bank, with seven branches in King and Pierce counties in Washington State. Substantially all of Columbia
Bank’s loans, loan commitments and core deposits are within its service areas. Columbia Bank is a Washington
state-chartered commercial bank, the deposits of which are insured in whole or in part by the FDIC. Columbia
Bank is subject to regulation by the FDIC and the Washington State Department of Financial Institutions
Division of Banks. Although Columbia Bank is not a member of the Federal Reserve System, the Board of
Governors of the Federal Reserve System has certain supervisory authority over the Company, which can also
affect Columbia Bank.

Company Management

Name

Principal Position

Melanie J. Dressel . . . . . . . . . . . . . . . President & Chief Executive Officer
Andrew McDonald . . . . . . . . . . . . . . Executive Vice President & Chief Credit Officer
Mark W. Nelson . . . . . . . . . . . . . . . . Executive Vice President & Chief Banking Officer
Kent L Roberts . . . . . . . . . . . . . . . . . Executive Vice President & Human Resources Director
Gary R. Schminkey . . . . . . . . . . . . . . Executive Vice President & Chief Financial Officer

Financial Information about Segments

The Company is managed along two major lines of business within the Columbia Bank banking subsidiary:
commercial banking and retail banking. The treasury function of the Company, although not considered a line of
business, is responsible for the management of investments and interest rate risk. The Bank of Astoria banking
subsidiary currently operates as a stand-alone segment of the Company. Financial information about segments
that conform to accounting principles generally accepted in the United States is presented in Note 19 to the
Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data” of this report.

Business Overview

Our goal is to be the leading Pacific Northwest regional community banking company while consistently
increasing earnings and shareholder value. We continue to build on our reputation for excellent customer service
in order to be recognized in all markets we serve as the bank of choice for retail deposit customers, small to
medium-sized businesses and affluent households.

4

We have established a network of 55 branches as of December 31, 2007 from which we intend to grow
market share. Western Washington locations consist of twenty-four branches in Pierce County, fourteen in King
County, three in Cowlitz County, two in Thurston County and one each in Kitsap and Whatcom Counties.
Oregon locations include three branches in Clackamas County and two branches in Multnomah County. Bank of
Astoria locations along the northern coastal area of Oregon state consist of four branches in Clatsop County and
one in Tillamook County.

In order to fund our lending activities and to allow for increased contact with customers, we utilize a branch
system to better serve retail and business customer depositors. We believe this approach will enable us to expand
lending activities while attracting a stable core deposit base. In order to support our strategy of market
penetration and increased profitability, while continuing our personalized banking approach and our commitment
to asset quality, we have invested in experienced banking and administrative personnel and have incurred related
costs in the creation of our branch network.

Business Strategy

Our business strategy is to provide our customers with the financial sophistication and breadth of products

of a regional banking company while retaining the appeal and service level of a community bank. We continually
evaluate our existing business processes while focusing on maintaining asset quality and balanced loan and
deposit portfolios, expanding total revenue and controlling expenses in an effort to increase our return on average
equity and gain operational efficiencies. We believe that as a result of our strong commitment to highly
personalized, relationship-oriented customer service, our varied products, our strategic branch locations and the
long-standing community presence of our managers, banking officers and branch personnel, we are well
positioned to attract and retain new customers and to increase our market share of loans, deposits, and other
financial services in the communities we serve. We are committed to increasing market share in the communities
we serve by continuing to leverage our existing branch network, adding new branch locations and considering
business combinations that are consistent with our expansion strategy throughout the Pacific Northwest.

Products & Services

We place the highest priority on customer service and assist our customers in making informed decisions
when selecting from the products and services we offer. We continuously review our products and services to
ensure that we provide our customers with the tools to meet their financial institution needs. A more complete
listing of all the services and products available to our customers can be found on our website:
www.columbiabank.com. Some of the core products and services we offer include:

Personal Banking

Checking and Saving Accounts
Online Banking
Electronic Bill Pay
Consumer Lending
Residential Lending
Visa Card Services
Investment Services
Private Banking

•
•
•
•
•
•
•
•

Business Banking

Checking & Saving Accounts
Online Banking
Electronic Bill Pay
Remote Deposit Capture
Cash Management
Commercial & Industrial Lending
Real Estate and Real Estate Construction Lending
Equipment Finance
Small Business Services
Visa Card Services
Investment Services
International Banking

•
•
•
•
•
•
•
•
•
•
•
•
• Merchant Card Services

Personal Banking: We offer our personal banking customers an assortment of checking and saving account

products including non-interest and interest bearing checking, savings, money market and certificate of deposit
accounts. Overdraft protection is also available with direct links to the customer’s checking account. Our online

5

banking service, Columbia Online™, provides our personal banking customers with the ability to safely and
securely conduct their banking business 24 hours a day, 7 days a week. Personal banking customers are also
provided with a variety of borrowing products including fixed and variable rate home equity loans and lines of
credit, home mortgages for purchases and refinances, personal loans, and other consumer loans. Eligible personal
banking customers with checking accounts are provided a VISA® Check Card which can be used to make
purchases and also act as an ATM card. A variety of Visa® Credit Cards are also available to eligible personal
banking customers.

Columbia Private Banking offers clientele requiring complex financial solutions and their businesses credit
services, deposit and cash management services, and wealth management. Each private banker provides advisory
services and coordinates a relationship team of experienced financial professionals to meet the unique needs of
each discerning customer.

Through CB Financial Services(1), personal banking customers are provided with a full range of investment

options including mutual funds, stocks, bonds, retirement accounts, annuities, tax-favored investments, US
Government securities as well as long-term care and life insurance policies. Qualified investment professionals
are available to provide advisory services(2) and assist customers with retirement and education planning.

Business Banking: We offer our business banking customers an assortment of checking, savings, interest

bearing money market and certificate of deposit accounts to satisfy all their banking needs. Our Cash
Management professionals are available to customize banking solutions with products such as automatic
investment and line of credit sweeps; daily DEPOSIT, our remote deposit product to deposit checks without
leaving their place of business; positive pay, to identify fraudulent account activity quickly; and two choices of
online banking, Columbia OnLine Business Banking and Streamlined Business Banking. Columbia OnLine
Business Banking provides customers with the ability to tailor user access by individual, view balances and
transactions, see check images, transfer funds, place stop payments, pay bills electronically, export transaction
history in multiple file formats, create wire transfers and originate ACH transactions, such as direct deposit of
employees’ payroll. Streamlined Business Banking is our free online solution intended for smaller businesses, or
those just starting out. Streamlined Business Banking provides customers with the ability to view balances and
transactions, see statements and check images, transfer funds, pay bills electronically and export transaction
history in multiple file formats.

We offer a variety of loan products tailored to meet the various needs of business banking customers.

Commercial loan products include accounts receivable, inventory and equipment financing as well as Small
Business Administration financing. We also offer commercial real estate loan products for construction and
development or permanent financing. Historically, lending activities have been primarily directed toward the
origination of real estate and commercial loans. Real estate lending activities have been focused on construction
and permanent loans for both owner occupants and investor oriented real estate properties. In addition, the bank
has pursued construction and first mortgages on owner occupied, one- to four-family residential properties.
Commercial banking has been directed toward meeting the credit and related deposit needs of various sized
businesses and professional practice organizations operating in our primary market areas.

We offer our business banking customers a selection of Visa® Cards including the Business Check Card that
works like a check wherever VISA® is accepted including ATM cash withdrawals 24 hours a day, 7 days a week.
We partner with First National Bank of Omaha to offer Visa® Credit Cards such as the Corporate Card which can

(1)

Securities and insurance products are offered by Primevest Financial Services, Inc., an independent,
registered broker/dealer. Member FINRA/SIPC. Investment products are * Not FDIC insured * May lose
value * Not bank guaranteed * Not a deposit * Not insured by any federal government agency.
(2) Advisory services may only be offered by Investment Adviser Representatives in connection with an
appropriate PRIMEVEST Advisory Services Agreement and disclosure brochure as provided.

6

be used all over the world; the Purchasing Card with established purchasing capabilities based on your business
needs; as well as the Business Edition® and Business Edition Plus® that earns reward points with every purchase.
Our International Banking Department provides both large and small businesses with the ability to buy and sell
foreign currencies as well as obtain letters of credit and wire funds to their customers and suppliers in foreign
countries.

Business clients that utilize Columbia’s Merchant Card Services have the ability to accept both Visa® and
MasterCard® sales drafts for deposit directly into their business checking account. Merchants are provided with a
comprehensive accounting system tailored to meet each merchant’s needs, which includes month-to-date credit
card deposit information on a transaction statement. Internet access is available to view merchant reports that
allow business customers to review merchant statements, authorized, captured, cleared and settled transactions.

Through CB Financial Services(1), customers are provided with an array of investment options and all the
tools and resources necessary to assist them in reaching their investment goals. Some of the investment options
available to customers include 401(k), Simple IRA, Simple Employee Pensions, Buy-Sell Agreements, Key-Man
Insurance, Business Succession Planning and personal investments.

Competition

Our industry is highly competitive. Several other financial institutions with greater resources compete for

banking business in our market areas. Among the advantages of some of these institutions are their ability to
make larger loans, finance extensive advertising and promotion campaigns, access international financial markets
and allocate their investment assets to regions of highest yield and demand. In addition to competition from other
banking institutions, we continue to experience competition from non-banking companies such as credit unions,
brokerage houses and other financial services companies. We compete for loans, deposits and other financial
services by offering our customers similar breadth of products as our larger competitors while delivering a more
personalized service level with faster transaction turnaround time.

Market Areas

Washington: Over half of our total branches within Washington are located in Pierce County, with an

estimated population of 790,500 residents. At June 30, 2007 our Pierce County branch locations’ share of the
county’s total deposit market was 17%(3), ranking first amongst our competition. Also located in Pierce County is
our Company headquarters in the city of Tacoma and one nearby operational facility. Some of the most
significant contributors to the Pierce County economy are the Port of Tacoma which accounts for more than
43,000 jobs, McChord Air Force Base and Fort Lewis Army Base that account for nearly 20% of the County’s
total employment and the manufacturing industry which supplies the Boeing Company.

We operate fourteen branch locations in King County, including Seattle, Bellevue and Redmond. King
County, which is Washington’s most highly populated county at approximately 1.8 million residents, is a market
that has significant growth potential for our Company and will play a key role in our expansion strategy in the
future. At June 30, 2007 our share of the King County deposit market was less than 1%(3); however, we have
made significant inroads within this market through the strategic expansion of our banking team. The north King
County economy is primarily made up of the aerospace, construction, computer software and biotechnology
industries. South King County with its close proximity to Pierce County is considered a natural extension of our
primary market area. The economy of south King County is primarily comprised of residential communities
supported by light industrial, retail, aerospace and distributing and warehousing industries.

(1)

(3)

Securities and insurance products are offered by Primevest Financial Services, Inc., an independent,
registered broker/dealer. Member FINRA/SIPC. Investment products are * Not FDIC insured * May lose
value * Not bank guaranteed * Not a deposit * Not insured by any federal government agency.
Source: FDIC Annual Summary of Deposit Report as of June 30, 2007.

7

Some other market areas served by the Company include Cowlitz County where we operate three branch
locations that account for 11%(3) of the deposit market share, Thurston County were we operate two branches
offices, and Kitsap and Whatcom County where we operate one branch in each county.

Oregon: With the acquisition of Town Center Bancorp in July, 2007, we added five branches in Clackamas

and Multnomah counties in the Portland, Oregon area, which have less than 1%(3) of the total deposit market
share in each of those counties. Bank of Astoria’s five branches located in the western portions of Clatsop and
Tillamook Counties, in the northern Oregon coastal area account for 34%(3) and 6%(3) of the deposit market
share, respectively. Oregon market areas provide a significant opportunity for expansion in the future. Both
Clatsop and Tillamook Counties are comprised primarily of tourism, forestry and commercial fishing related
businesses.

Employees

As of December 31, 2007 the Company and its banking subsidiaries employed approximately 775 full time

equivalent employees. We value our employees and pride ourselves on providing a professional work
environment accompanied by comprehensive benefit programs. We are committed to providing flexible and
value-added benefits to our employees through a “Total Compensation Philosophy” which incorporates all
compensation and benefits. Our continued commitment to employees contributed to Columbia Bank being
named one of Washington’s Best Workplaces in 2007 by the Puget Sound Business Journal.

Available Information

We file annual reports on Form 10-K, quarterly reports on Form 10-Q, periodic reports on Form 8-K, proxy

statements and other information with the United States Securities and Exchange Commission (“SEC”). The
public may obtain copies of these reports and any amendments at the SEC’s Internet site, www.sec.gov.
Additionally, reports filed with the SEC can be obtained through our website at www.columbiabank.com. These
reports are available through our website as soon as reasonably practicable after they are filed electronically with
the SEC. Information contained on our website is not intended to be incorporated by reference into this report.

Supervision and Regulation

General

The following discussion describes elements of the extensive regulatory framework applicable to Columbia

Banking System, Inc. (the “Company”), Columbia State Bank and Mt. Rainier Bank, a dba of Columbia State
Bank (together referred to herein as “Columbia Bank”), and Bank of Astoria. This regulatory framework is
primarily designed for the protection of depositors, federal deposit insurance funds and the banking system as a
whole, rather than specifically for the protection of shareholders. Due to the breadth of this regulatory
framework, our costs of compliance continue to increase in order to monitor and satisfy these requirements.

To the extent that this section describes statutory and regulatory provisions, it is qualified in its entirety by
reference to those provisions. These statutes and regulations, as well as related policies, are subject to change by
Congress, state legislatures and federal and state regulators. Changes in statutes, regulations or regulatory
policies applicable to us, including interpretation or implementation thereof, could have a material effect on our
business or operations.

Federal Bank Holding Company Regulation

General. The Company is a bank holding company as defined in the Bank Holding Company Act of 1956,

as amended (“BHCA”), and is therefore subject to regulation, supervision and examination by the Federal

(3)

Source: FDIC Annual Summary of Deposit Report as of June 30, 2007.

8

Reserve. In general, the BHCA limits the business of bank holding companies to owning or controlling banks and
engaging in other activities closely related to banking. The Company must file reports with and provide the
Federal Reserve such additional information as it may require. Under the Financial Services Modernization Act
of 1999, a bank holding company may apply to the Federal Reserve to become a financial holding company, and
thereby engage (directly or through a subsidiary) in certain expanded activities deemed financial in nature, such
as securities brokerage and insurance underwriting.

Holding Company Bank Ownership. The BHCA requires every bank holding company to obtain the prior

approval of the Federal Reserve before (i) acquiring, directly or indirectly, ownership or control of any voting
shares of another bank or bank holding company if, after such acquisition, it would own or control more than 5%
of such shares; (ii) acquiring all or substantially all of the assets of another bank or bank holding company; or
(iii) merging or consolidating with another bank holding company.

Holding Company Control of Nonbanks. With some exceptions, the BHCA also prohibits a bank holding

company from acquiring or retaining direct or indirect ownership or control of more than 5% of the voting shares
of any company which is not a bank or bank holding company, or from engaging directly or indirectly in
activities other than those of banking, managing or controlling banks, or providing services for its subsidiaries.
The principal exceptions to these prohibitions involve certain non-bank activities that, by statute or by Federal
Reserve regulation or order, have been identified as activities closely related to the business of banking or of
managing or controlling banks.

Transactions with Affiliates. Subsidiary banks of a bank holding company are subject to restrictions
imposed by the Federal Reserve Act on extensions of credit to the holding company or its subsidiaries, on
investments in their securities and on the use of their securities as collateral for loans to any borrower. These
regulations and restrictions may limit the Company’s ability to obtain funds from its subsidiary banks for its cash
needs, including funds for payment of dividends, interest and operational expenses.

Tying Arrangements. We are prohibited from engaging in certain tie-in arrangements in connection with

any extension of credit, sale or lease of property or furnishing of services. For example, with certain exceptions,
neither the Company nor its subsidiaries may condition an extension of credit to a customer on either (i) a
requirement that the customer obtain additional services provided by us; or (ii) an agreement by the customer to
refrain from obtaining other services from a competitor.

Support of Subsidiary Banks. Under Federal Reserve policy, the Company is expected to act as a source of
financial and managerial strength to its subsidiary banks. This means that the Company is required to commit, as
necessary, resources to support Columbia Bank and the Bank of Astoria. Any capital loans a bank holding
company makes to its subsidiary banks are subordinate to deposits and to certain other indebtedness of those
subsidiary banks.

State Law Restrictions. As a Washington corporation, the Company is subject to certain limitations and

restrictions under applicable Washington corporate law. For example, state law restrictions in Washington
include limitations and restrictions relating to indemnification of directors, distributions to shareholders,
transactions involving directors, officers or interested shareholders, maintenance of books, records, and minutes,
and observance of certain corporate formalities.

Federal and State Regulation of Columbia State Bank and Astoria

General. The deposits of Columbia Bank, a Washington chartered commercial bank with branches in

Washington and Oregon, and the Bank of Astoria, an Oregon chartered commercial bank, are insured by the
FDIC. As a result, Columbia Bank is subject to supervision and regulation by the Washington Department of
Financial Institutions, Division of Banks and the FDIC. The Bank of Astoria is primarily regulated by the Oregon
Department of Consumer and Business Services and the FDIC. With respect to branches of Columbia Bank in

9

Oregon, the Bank is also subject to supervision and regulation by, respectively, the Oregon Department of
Consumer and Business Services, as well as the FDIC. These agencies have the authority to prohibit banks from
engaging in what they believe constitute unsafe or unsound banking practices.

Community Reinvestment. The Community Reinvestment Act of 1977 requires that, in connection with
examinations of financial institutions within their jurisdiction, the Federal Reserve or the FDIC evaluate the
record of the financial institution in meeting the credit needs of its local communities, including low and
moderate-income neighborhoods, consistent with the safe and sound operation of the institution. A bank’s
community reinvestment record is also considered by the applicable banking agencies in evaluating mergers,
acquisitions and applications to open a branch or facility.

Insider Credit Transactions. Banks are also subject to certain restrictions imposed by the Federal Reserve
Act on extensions of credit to executive officers, directors, principal shareholders or any related interests of such
persons. Extensions of credit (i) must be made on substantially the same terms, including interest rates and
collateral, and follow credit underwriting procedures that are at least as stringent as those prevailing at the time
for comparable transactions with persons not covered above and who are not employees; and (ii) must not
involve more than the normal risk of repayment or present other unfavorable features. Banks are also subject to
certain lending limits and restrictions on overdrafts to insiders. A violation of these restrictions may result in the
assessment of substantial civil monetary penalties, the imposition of a cease and desist order, and other
regulatory sanctions.

Regulation of Management. Federal law (i) sets forth circumstances under which officers or directors of a
bank may be removed by the institution’s federal supervisory agency; (ii) places restraints on lending by a bank
to its executive officers, directors, principal shareholders, and their related interests; and (iii) prohibits
management personnel of a bank from serving as a director or in other management positions of another financial
institution whose assets exceed a specified amount or which has an office within a specified geographic area.

Safety and Soundness Standards. Federal law imposes certain non-capital safety and soundness standards

upon banks. These standards cover, among other things, internal controls, information systems, internal audit
systems, loan documentation, credit underwriting, interest rate exposure, asset growth, compensation and
benefits. Additional standards apply to asset quality, earnings and stock valuation. An institution that fails to
meet these standards must develop a plan acceptable to its regulators, specifying the steps that the institution will
take to meet the standards. Failure to submit or implement such a plan may subject the institution to regulatory
sanctions.

Interstate Banking And Branching

The Riegle-Neal Interstate Banking and Branching Efficiency Act of 1994 (“Interstate Act”) permits relaxed

prior interstate branching restrictions under federal law by permitting nationwide interstate banking and
branching under certain circumstances. Generally, bank holding companies may purchase banks in any state, and
states may not prohibit these purchases. Additionally, banks are permitted to merge with banks in other states, as
long as the home state of neither merging bank has opted out under the legislation. The Interstate Act requires
regulators to consult with community organizations before permitting an interstate institution to close a branch in
a low-income area. Federal banking agency regulations prohibit banks from using their interstate branches
primarily for deposit production and the federal banking agencies have implemented a loan-to-deposit ratio
screen to ensure compliance with this prohibition.

Washington and Oregon have both enacted “opting in” legislation in accordance with the Interstate Act

provisions allowing banks to engage in interstate merger transactions, subject to certain “aging” requirements.
Under Washington law, an out-of-state bank may, subject to Department of Financial Institution approval, open
de novo branches in Washington or acquire an in-state branch so long as the home state of the out-of-state bank
has reciprocal laws with respect to de novo branching or branch acquisitions. In contrast, Oregon restricts an

10

out-of-state bank from opening de novo branches, and no out-of-state bank may conduct banking business at a
branch located in Oregon unless the out-of-state bank has converted from, has assumed all, or substantially all, of
Oregon deposit liabilities of or has merged with an insured institution that, by itself or together with any
predecessor, has been engaged in banking business in Oregon for at least three years.

Deposit Insurance

In 2006, federal deposit insurance reform legislation was enacted that (i) required the FDIC to merge the
Bank Insurance Fund and the Savings Association Insurance Fund into a newly created Deposit Insurance Fund;
(ii) increases the amount of deposit insurance coverage for retirement accounts; (iii) allows for deposit insurance
coverage on individual accounts to be indexed for inflation starting in 2010; (iv) provides the FDIC more
flexibility in setting and imposing deposit insurance assessments; and (v) provides eligible institutions credits on
future assessments.

The Banks’ deposits are currently insured to a maximum of $100,000 per depositor through the Deposit

Insurance Fund. The Banks are each required to pay deposit insurance premiums, which are assessed and paid
regularly. The premium amount is based upon a risk classification system established by the FDIC. Banks with
higher levels of capital and a low degree of supervisory concern are assessed lower premiums than banks with
lower levels of capital or a higher degree of supervisory concern.

Dividends

The principal source of the Company’s cash is from dividends received from its subsidiary banks, which are

subject to government regulation and limitations. Regulatory authorities may prohibit banks and bank holding
companies from paying dividends in a manner that would constitute an unsafe or unsound banking practice or
would reduce the amount of its capital below that necessary to meet minimum applicable regulatory capital
requirements. Oregon and Washington law also limit a bank’s ability to pay dividends that are greater than the
bank’s retained earnings without approval of the applicable banking agency.

Capital Adequacy

Regulatory Capital Guidelines. Federal bank regulatory agencies use capital adequacy guidelines in the
examination and regulation of bank holding companies and banks. The guidelines are “risk-based,” meaning that
they are designed to make capital requirements more sensitive to differences in risk profiles among banks and
bank holding companies.

Tier I and Tier II Capital. Under the guidelines, an institution’s capital is divided into two broad categories,

Tier I capital and Tier II capital. Tier I capital generally consists of common stockholders’ equity, surplus and
undivided profits. Tier II capital generally consists of the allowance for loan losses and hybrid capital
instruments. The sum of Tier I capital and Tier II capital represents an institution’s total capital. The guidelines
require that at least 50% of an institution’s total capital consist of Tier I capital.

Risk-based Capital Ratios. The adequacy of an institution’s capital is gauged primarily with reference to the

institution’s risk-weighted assets. The guidelines assign risk weightings to an institution’s assets in an effort to
quantify the relative risk of each asset and to determine the minimum capital required to support that risk. An
institution’s risk-weighted assets are then compared with its Tier I capital and total capital to arrive at a Tier I
risk-based ratio and a total risk-based ratio, respectively. The guidelines provide that an institution must have a
minimum Tier I risk-based ratio of 4% and a minimum total risk-based ratio of 8%.

Leverage Ratio. The guidelines also employ a leverage ratio, which is Tier I capital as a percentage of total
assets, less intangibles. The principal objective of the leverage ratio is to constrain the maximum degree to which
a bank holding company may leverage its equity capital base. The minimum leverage ratio is 3%; however, for
all but the most highly rated bank holding companies and for bank holding companies seeking to expand,
regulators expect an additional cushion of at least 1% to 2%.

11

Prompt Corrective Action. Under the guidelines, an institution is assigned to one of five capital categories

depending on its total risk-based capital ratio, Tier I risk-based capital ratio, and leverage ratio, together with
certain subjective factors. The categories range from “well capitalized” to “critically undercapitalized.”
Institutions that are “undercapitalized” or lower are subject to certain mandatory supervisory corrective actions.

In 2007, the federal banking agencies, including the FDIC and the Federal Reserve, approved final rules to

implement new risk-based capital requirements. Presently, this new advanced capital adequacy framework,
called Basel II, is applicable only to large and internationally active banking organizations. Basel II changes the
existing risk-based capital framework by enhancing its risk sensitivity. Whether Basel II will be expanded to
apply to banking organizations like ours is unclear at this time, and what effect such regulations would have on
us cannot be predicted, but we do not expect our operations would be significantly impacted.

Regulatory Oversight and Examination

The Federal Reserve conducts periodic inspections of bank holding companies, which are performed both

onsite and offsite. The supervisory objectives of the inspection program are to ascertain whether the financial
strength of the bank holding company is being maintained on an ongoing basis and to determine the effects or
consequences of transactions between a holding company or its non-banking subsidiaries and its subsidiary
banks. For holding companies under $10 billion in assets, the inspection type and frequency varies depending on
asset size, complexity of the organization, and the holding company’s rating at its last inspection.

Banks are subject to periodic examinations by their primary regulators. Bank examinations have evolved

from reliance on transaction testing in assessing a bank’s condition to a risk-focused approach. These
examinations are extensive and cover the entire breadth of operations of the bank. Generally, safety and
soundness examinations occur on an 18-month cycle for banks under $500 million in total assets that are well
capitalized and without regulatory issues, and 12-months otherwise. Examinations alternate between the federal
and state bank regulatory agency or may occur on a combined schedule. The frequency of consumer compliance
and CRA examinations is linked to the size of the institution and its compliance and CRA ratings at its most
recent examinations. However, the examination authority of the Federal Reserve and the FDIC allows them to
examine supervised banks as frequently as deemed necessary based on the condition of the bank or as a result of
certain triggering events.

Corporate Governance and Accounting Legislation

Sarbanes-Oxley Act of 2002. The Sarbanes-Oxley Act of 2002 (the “Act”) addresses among other things,
corporate governance, auditing and accounting, enhanced and timely disclosure of corporate information, and
penalties for non-compliance. Generally, the Act (i) requires chief executive officers and chief financial officers
to certify to the accuracy of periodic reports filed with the Securities and Exchange Commission (the “SEC”);
(ii) imposes specific and enhanced corporate disclosure requirements; (iii) accelerates the time frame for
reporting of insider transactions and periodic disclosures by public companies; (iv) requires companies to adopt
and disclose information about corporate governance practices, including whether or not they have adopted a
code of ethics for senior financial officers and whether the audit committee includes at least one “audit
committee financial expert;” and (v) requires the SEC, based on certain enumerated factors, to regularly and
systematically review corporate filings.

To deter wrongdoing, the Act (i) subjects bonuses issued to top executives to disgorgement if a restatement

of a company’s financial statements was due to corporate misconduct; (ii) prohibits an officer or director
misleading or coercing an auditor; (iii) prohibits insider trades during pension fund “blackout periods”;
(iv) imposes new criminal penalties for fraud and other wrongful acts; and (v) extends the period during which
certain securities fraud lawsuits can be brought against a company or its officers.

12

As a publicly reporting company, we are subject to the requirements of the Act and related rules and
regulations issued by the SEC and NASDAQ. After enactment, we updated our policies and procedures to
comply with the Act’s requirements and have found that such compliance, including compliance with
Section 404 of the Act relating to management control over financial reporting, has resulted in significant
additional expense for the Company. We anticipate that we will continue to incur such additional expense in our
ongoing compliance.

Anti-terrorism Legislation

USA Patriot Act of 2001. The Uniting and Strengthening America by Providing Appropriate Tools
Required to Intercept and Obstruct Terrorism Act of 2001, intended to combat terrorism, was renewed with
certain amendments in 2006 (the “Patriot Act”). Certain provisions of the Patriot Act were made permanent and
other sections were made subject to extended “sunset” provisions. The Patriot Act, in relevant part, (i) prohibits
banks from providing correspondent accounts directly to foreign shell banks; (ii) imposes due diligence
requirements on banks opening or holding accounts for foreign financial institutions or wealthy foreign
individuals; (iii) requires financial institutions to establish an anti-money-laundering compliance program; and
(iv) eliminates civil liability for persons who file suspicious activity reports. The Act also includes provisions
providing the government with power to investigate terrorism, including expanded government access to bank
account records. While the Patriot Act has had minimal affect on our record keeping and reporting expenses, we
do not believe that the renewal and amendment will have a material adverse effect on our business or operations.

Financial Services Modernization

Gramm-Leach-Bliley Act of 1999. The Gramm-Leach-Bliley Financial Services Modernization Act of 1999

brought about significant changes to the laws affecting banks and bank holding companies. Generally, the Act
(i) repeals historical restrictions on preventing banks from affiliating with securities firms; (ii) provides a uniform
framework for the activities of banks, savings institutions and their holding companies; (iii) broadens the
activities that may be conducted by national banks and banking subsidiaries of bank holding companies;
(iv) provides an enhanced framework for protecting the privacy of consumer information and requires
notification to consumers of bank privacy policies; and (v) addresses a variety of other legal and regulatory
issues affecting both day-to-day operations and long-term activities of financial institutions. Bank holding
companies that qualify and elect to become financial holding companies can engage in a wider variety of
financial activities than permitted under previous law, particularly with respect to insurance and securities
underwriting activities.

Recent Legislation

Financial Services Regulatory Relief Act of 2006. In 2006, the President signed the Financial Services
Regulatory Relief Act of 2006 into law (the “Relief Act”). The Relief Act amends several existing banking laws
and regulations, eliminates some unnecessary and overly burdensome regulations of depository institutions and
clarifies several existing regulations. The Relief Act, among other things, (i) authorizes the Federal Reserve
Board to set reserve ratios; (ii) amends regulations of national banks relating to shareholder voting and granting
of dividends; (iii) amends several provisions relating to loans to insiders, regulatory applications, privacy notices,
and golden parachute payments; and (iv) expands and clarifies the enforcement authority of federal banking
regulators. Our business, expenses, and operations have not been significantly impacted by this legislation.

Effects of Government Monetary Policy

Our earnings and growth are affected not only by general economic conditions, but also by the fiscal and

monetary policies of the federal government, particularly the Federal Reserve. The Federal Reserve implements
national monetary policy for such purposes as curbing inflation and combating recession, but its open market
operations in U.S. government securities, control of the discount rate applicable to borrowings from the Federal
Reserve, and establishment of reserve requirements against certain deposits, influence the growth of bank loans,

13

investments and deposits, and also affect interest rates charged on loans or paid on deposits. The nature and
impact of future changes in monetary policies, such as the recent lowering of the Federal Reserve’s discount rate,
and their impact on us cannot be predicted with certainty.

ITEM 1A. RISK FACTORS

Our business exposes us to certain risks. The following is a discussion of what we currently believe are

the most significant risks and uncertainties that may affect our business, financial condition and future
results.

Economic downturns in the market areas we serve or a rapidly increasing interest rate environment could

increase the credit risk within the loan portfolio.

Lending activities are our largest source of credit risk, which is the risk that a borrower will fail to meet
their obligations in accordance with agreed upon terms. We manage the credit risk inherent in our loan portfolio
through the establishment of sound underwriting policies and procedures. We maintain an allowance for loan and
lease losses as well as an allowance for unfunded loan commitments and letters of credit to absorb anticipated
future losses. Although we consider our allowance for loan and lease losses and allowance for unfunded loan
commitments and letters of credit to be adequate at December 31, 2007, a significant downturn in the economy
could result in higher delinquencies and defaults which would negatively impact our financial position. A
substantial portion of the loans in our portfolio are variable rate. While recently we have been in a decreasing
interest rate environment, a rapidly increasing interest rate environment or inability to access credit or other
funding could impair our borrower’s ability to service the interest portion of their obligations to us. This could
result in decreased net income from increased provisions to the allowance for loan and lease losses as well as
decreased interest income resulting from an increase in nonaccrual loans. For additional discussion see “Risk
Elements” in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operation”
of this report.

A rapid change in interest rates could negatively impact net interest income.

We are exposed to interest rate risk, which is the risk that changes in prevailing interest rates will adversely

affect assets, liabilities, capital, income and expenses at different times or in different amounts. We utilize a
number of measures to monitor and manage interest rate risk, such as income simulations and interest sensitivity
(gap) analyses. A number of factors that impact interest rates are beyond our control such as general economic
conditions as well as governmental and regulatory policies. The impact of rate changes to our net interest income
is determined by the amount of change and the time horizon over which change occurs. For additional discussion
see “Item 7A. Quantitative and Qualitative Disclosures about Market Risk” of this report.

Competition.

We face significant competition from other financial institutions for loans and deposits. We believe the most

significant competitive factor is customer service, in addition to interest rates offered on loans and paid on
deposits, fee structures, branch locations, and the range of banking services and products offered. Failure to
maintain our service culture could increase the susceptibility of our customer base to our competitors marketing
campaigns and thwart our efforts to expand our existing customer base. For additional discussion see
“Competition” in “Item 1. Business” of this report.

Failure to hire or retain management and staff could impede our ability to maintain or grow earnings.

Maintaining our current customer base is reliant upon the retention of key management and personnel across
all our business lines. We rely on these talented professionals to manage lines of business which are critical in the
generation of operating revenue. In addition, the failure to attract new employees critical to the execution of our
expansion plan could result in diminished returns on our investment in these initiatives.

14

The tightening of available liquidity could limit our ability to meet loan demand.

Some of the markets from which we obtain our wholesale funding have experienced significant volatility
and disruption since mid-2007. Additional uncertainty within these markets could limit our access to wholesale
funding and impair our ability to grow our loan portfolio consistent with historical trends.

Concentration in real estate loans.

We have a high concentration of loans secured by real estate and a downturn in the real estate market, for

any reason, could hurt our business and our prospects. Our business activities and credit exposure are
concentrated in loans secured by real estate. A decline in the real estate market could hurt our business because
the collateral securing those loans would decrease in value. A downturn in the local economy could have a
material adverse effect both on a borrower’s ability to repay these loans, as well as the value of the real property
held as collateral. Our ability to recover on defaulted loans by foreclosing and selling the real estate collateral
would then be diminished and we would be more likely to suffer losses on defaulted loans.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 2. PROPERTIES

Locations

Columbia Bank: The Company’s principal Columbia Bank properties include our corporate headquarters
which is located at 13th & A Street, Tacoma, Washington, in Pierce County, where we occupy 62,000 square feet
of office space, 4,000 square feet of commercial lending space and 750 square feet of branch space under various
operating lease agreements, an operations facility in Lakewood, Washington, where we own 58,000 square feet
of office space and an office facility in Tacoma, Washington, that includes a branch where we occupy 26,000
square feet under various operating lease agreements.

In Pierce County we conduct business in twenty additional branch locations, fourteen of which are owned
and six of which are leased under various operating lease agreements. In King County we conduct business in
nine branch locations, six of which are owned and three of which are leased. In Kitsap, Thurston, Cowlitz and
Whatcom counties we conduct business in seven branch locations, five of which are owned and two that are
leased under various operating lease agreements. In addition, Columbia Bank, dba Mt. Rainier Bank, conducts
business in seven branch locations in King and Pierce counties. Finally, in the Portland metropolitan area,
Columbia Bank conducts business in five branch locations in Clackamas and Multnomah counties.

Bank of Astoria: The Company’s principal Astoria properties include headquarters in Astoria, Oregon, in

Clatsop County, where we own 20,000 square feet of branch and office space. We conduct business in three
additional branches in Clatsop County and one branch in Tillamook County, all of which are owned.

For additional information concerning our premises and equipment and lease obligations, see Note 8 and 16,
respectively, to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data”
of this report.

ITEM 3. LEGAL PROCEEDINGS

The Company and its banking subsidiaries are parties to routine litigation arising in the ordinary course of

business. Management believes that, based on the information currently known to them, any liabilities arising
from such litigation will not have a material adverse impact on the Company’s financial condition, results of
operations or cash flows.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

None.

15

PART II

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER

MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Quarterly Common Stock Prices and Dividends

Our common stock is traded on the NASDAQ Global Select Market under the symbol “COLB”. Quarterly
high and low closing prices and dividend information for the last two years are presented in the following table.
The prices shown do not include retail mark-ups, mark-downs or commissions:

2007
First quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Second quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fourth quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
For the year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2006
First quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Second quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fourth quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
For the year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

High
$35.96
$34.18
$33.41
$34.00
$35.96

High
$35.49
$37.39
$36.67
$36.20
$37.39

Low
$32.36
$28.35
$24.71
$27.19
$24.71

Low
$27.99
$31.75
$29.91
$30.90
$27.99

Cash Dividend
Declared
$0.15
0.17
0.17
0.17
$0.66

Cash Dividend
Declared
$0.13
0.14
0.15
0.15
$0.57

On December 31, 2007, the last sale price for our stock in the over-the-counter market was $29.73. At
January 31, 2008, the number of shareholders of record was 2,339. This figure does not represent the actual
number of beneficial owners of common stock because shares are frequently held in “street name” by securities
dealers and others for the benefit of individual owners who may vote the shares.

At December 31, 2007, a total of 331,868 stock options were outstanding. Additional information about

stock options and other equity compensation plans is included in Note 13 to the Consolidated Financial
Statements in “Item 8. Financial Statements and Supplementary Data” of this report.

The payment of future cash dividends is at the discretion of our Board and subject to a number of factors,
including results of operations, general business conditions, growth, financial condition and other factors deemed
relevant by the Board of Directors. Our ability to pay future cash dividends is subject to certain regulatory
requirements and restrictions which are discussed in the Supervision and Regulation section in “Item 1.
Business” of this report.

Equity Compensation Plan Information

Year Ended December 31, 2007

Number of Shares to be
Issued Upon Exercise of
Outstanding Options,
Warrants and Rights (1)

Weighted-Average
Exercise Price of
Outstanding Options,
Warrants and Rights

Number of Shares
Remaining Available for
Future Issuance Under
Equity Compensation
Plans (2)

Equity compensation plans approved by

security holders . . . . . . . . . . . . . . . . . . . . . .

Equity compensation plans not approved by

security holders . . . . . . . . . . . . . . . . . . . . . .

331,868

—

$14.77

—

196,414

—

(1) Consists of shares that are subject to outstanding options.
(2)

Includes shares available for future issuance under the stock option plans and 66,320 shares available for
purchase under the Employee Stock Purchase Plan as of December 31, 2007.

16

Five-Year Stock Performance Graph

The following graph shows a five-year comparison of the total return to shareholders of Columbia’s

common stock, the Nasdaq Composite Index (which is a broad nationally recognized index of stock performance
by companies listed on the Nasdaq Stock Market) and the Columbia Peer Group (comprised of banks with assets
of $1 billion to $5 billion, all of which are located in the western United States). The definition of total return
includes appreciation in market value of the stock as well as the actual cash and stock dividends paid to
shareholders. The graph assumes that the value of the investment in Columbia’s common stock, the Nasdaq and
the Columbia Peer Group was $100 on December 31, 2002, and that all dividends were reinvested.

Total Return Performance

Columbia Banking System, Inc.

NASDAQ Composite

Columbia Peer Group

350

300

250

200

150

100

e
u
l
a
V
x
e
d
n

I

50
12/31/02

12/31/03

12/31/04

12/31/05

12/31/06

12/31/07

Index

December 31,
2002

December 31,
2003

December 31,
2004

December 31,
2005

December 31,
2006

December 31,
2007

Columbia Banking System, Inc.
. . .
NASDAQ Composite . . . . . . . . . . . .
Columbia Peer Group . . . . . . . . . . . .

100.00
100.00
100.00

173.20
150.01
148.27

212.25
162.89
195.14

246.18
165.13
210.18

308.21
180.85
250.14

266.81
198.60
174.80

Period Ending

Source: SNL Financial LC, Charlottesville, VA

17

 
ITEM 6. SELECTED FINANCIAL DATA

Five-Year Summary of Selected Consolidated Financial Data (1)

2007

2006

2005

2004

2003

(in thousands, except per share amounts)

1.39
1.37
10.66

2.01 $
1.99 $
15.71 $

1.89 $
1.87 $
14.29 $

1.93 $
1.91 $
19.03 $

1.55 $
1.52 $
13.03 $

86,651
63,867
2,850
22,784
55,960
19,522

97,763 $
2,065 $
24,672 $
76,134 $
32,103 $

94,187 $
71,943 $
995 $
22,244 $
61,326 $
22,513 $

For the Year
Total revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 136,568 $ 122,435 $ 115,698 $
90,912 $
Net interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 108,820 $
1,520 $
3,605 $
Provision for loan and lease losses . . . . . . . . . . . . . . . . . . . . . . . . . $
24,786 $
27,748 $
Noninterest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
72,855 $
88,829 $
Noninterest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
29,631 $
32,381 $
Per Share
Net Income (Basic) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Net Income (Diluted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Book Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Averages
Total Assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $2,837,162 $2,473,404 $2,290,746 $1,919,134 $1,696,417
Interest-earning assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $2,599,379 $2,265,393 $2,102,513 $1,769,470 $1,544,869
Loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,990,622 $1,629,616 $1,494,567 $1,186,506 $1,128,941
Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 581,122 $ 623,631 $ 605,395 $ 552,742 $ 401,594
Deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $2,242,134 $1,976,448 $1,923,778 $1,690,513 $1,483,173
Core deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,544,056 $1,433,395 $1,423,862 $1,238,536 $1,017,126
Shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 289,297 $ 237,843 $ 214,612 $ 169,414 $ 141,129
Financial Ratios
Net interest margin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Return on average assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Return on average equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Return on average tangible equity (2)
. . . . . . . . . . . . . . . . . . . . . .
Efficiency ratio (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Average equity to average assets . . . . . . . . . . . . . . . . . . . . . . . . . .
At Year End
Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $3,178,713 $2,553,131 $2,377,322 $2,176,730 $1,744,347
Loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $2,282,728 $1,708,962 $1,564,704 $1,359,743 $1,078,302
Allowance for loan and lease losses . . . . . . . . . . . . . . . . . . . . . . . . $
20,261
Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 572,973 $ 605,133 $ 585,332 $ 642,759 $ 523,864
Deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $2,498,061 $2,023,351 $2,005,489 $1,862,866 $1,544,626
Core deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,671,659 $1,473,701 $1,478,090 $1,381,073 $1,098,237
Shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 341,731 $ 252,347 $ 226,242 $ 203,154 $ 150,372
539
Full-time equivalent employees . . . . . . . . . . . . . . . . . . . . . . . . . . .
Banking offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
Nonperforming assets
Nonaccrual loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Restructured loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other personal property owned . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other real estate owned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total nonperforming assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

14,005 $
456
—
181
14,642 $

8,222 $
227
—
680
9,129 $

4,733 $
124
—
18
4,875 $

4.49%
1.30%
13.50%
15.88%
58.95%
9.62%

4.44%
1.29%
13.81%
16.63%
61.20%
9.37%

4.19%
1.17%
13.29%
14.02%
63.20%
8.83%

4.35%
1.14%
11.19%
14.53%
61.33%
10.20%

13,255
—
691
1,452
15,398

2,414 $
1,066
—
—

26,599 $

20,182 $

20,829 $

19,881 $

3,480 $

657
40

775
55

651
40

625
39

4.23%
1.15%
13.83%
13.83%
62.86%
8.32%

Nonperforming loans to year end loans . . . . . . . . . . . . . . . . . . . . .
Nonperforming assets to year end assets . . . . . . . . . . . . . . . . . . . .
Allowance for loan and lease losses to year end loans . . . . . . . . . .
Allowance for loan and lease losses to nonperforming loans . . . .
Allowance for loan and lease losses to nonperforming assets . . . .
Net loan charge-offs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Risk-Based Capital Ratios
Total capital
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tier I capital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leverage ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0.63%
0.46%
1.17%
183.94%
181.66%

380 $

0.20%
0.14%
1.18%
579.94%
579.94%
2,712 $

0.31%
0.21%
1.33%
428.84%
427.26%

0.62%
0.42%
1.46%
235.31%
217.78%

572 $

2,742 $

10.90%
9.87%
8.54%

13.23%
12.21%
9.86%

12.97%
11.82%
9.54%

12.99%
11.75%
8.99%

1.23%
0.88%
1.88%
152.86%
131.58%
1,760

14.49%
13.24%
10.03%

(1) These unaudited schedules provide selected financial information concerning the Company that should be read in conjunction
with “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” of this report.

(2) Annualized net income, excluding core deposit intangible amortization, divided by average daily shareholders’ equity, excluding

average goodwill and average core deposit intangible asset.

(3) Noninterest expense divided by the sum of net interest income and noninterest income on a tax equivalent basis, excluding
gains/losses on investment securities, net cost (gain) of OREO, reserve for VISA litigation liability and mark-to-market
adjustments of interest rate floor instruments.

18

In managing our business, we review the efficiency ratio, on a fully taxable-equivalent basis (see definition
in table below), which is not defined in accounting principles generally accepted in the United States (“GAAP”).

The efficiency ratio is calculated by dividing noninterest expense by the sum of net interest income and
noninterest income on a tax equivalent basis, excluding gains and losses on investment securities, net cost or gain
of other real estate owned (“OREO”), reserve for VISA litigation liability and mark-to-market adjustments of
interest rate floor instruments. Other companies may define or calculate this data differently. We believe this
presentation provides investors with a more accurate picture of our operating efficiency. In this presentation, net
interest income is adjusted to reflect tax-exempt interest income on an equivalent before-tax basis using the
federal statutory tax rate of 35 percent for all years presented. Noninterest income and noninterest expense are
adjusted for certain items as discussed above. The higher efficiency ratio during 2007 was primarily due to not
yet fully realizing operating efficiencies from the mid-year acquisitions of Mountain Bank Holding Company and
Town Center Bancorp. Improvement of the efficiency ratio will depend on increases in net interest income,
growth of noninterest income and continued expense control. For additional information see the “Noninterest
Expense” section in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of
Operation” of this report.

Reconciliation of Selected Financial Data to GAAP Financial Measures (3)

Net interest income (1) . . . . . . . . . . . . . . . . . . . . . . . .
Tax equivalent adjustment for non-taxable

Years ended December 31,

2007

2006

2005

2004

2003

$108,820

$ 97,763

(in thousands)
$90,912

$71,943

$63,867

investment securities interest income (2) . . . .

4,337

3,882

2,508

2,161

1,540

Adjusted net interest income . . . . . . . . . . .

$113,157

$101,645

$93,420

$74,104

$65,407

Noninterest income . . . . . . . . . . . . . . . . . . . . . . . . . .
(Gain) loss on sale of securities, net . . . . . . . . . .
Tax equivalent adjustment for BOLI

$ 27,748
—

$ 24,672
(36)

$24,786
(6)

$22,244
6

$22,784
(222)

income (2)

. . . . . . . . . . . . . . . . . . . . . . . . . . .

1,016

908

849

710

829

Adjusted noninterest income . . . . . . . . . . .

$ 28,764

$ 25,544

$25,629

$22,960

$23,391

Noninterest expense . . . . . . . . . . . . . . . . . . . . . . . . . .
Net gain (cost) of OREO . . . . . . . . . . . . . . . . . .
Interest rate floor valuation adjustment . . . . . . .
Reserve for VISA litigation liability . . . . . . . . .

$ 88,829
(5)

—
(1,777)

$ 76,134
11
(1,164)
—

$72,855
8

$61,326
13

—
—

—
—

$55,960
(139)
—
—

Adjusted noninterest expense . . . . . . . . . . .

$ 87,047

$ 74,981

$72,863

$61,339

$55,821

Efficiency ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Efficiency ratio (fully taxable-equivalent) . . . . . . . . .
Tax Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

65.04%
61.33%
35.00%

62.18% 62.97% 65.11% 64.58%
58.95% 61.20% 63.19% 62.86%
35.00% 35.00% 35.00% 35.00%

(1) Amount represents net interest income before provision for loan and lease losses.
(2) Fully Taxable-equivalent basis: Non-taxable revenue is increased by the statutory tax rate to recognize the

income tax benefit of the income realized.

(3) These unaudited schedules provide selected financial information concerning the Company that should be
read in conjunction with “Item 7. Management’s Discussion and Analysis of Financial Condition and
Results of Operation” of this report.

19

Consolidated Five-Year Statements of Operations (1)

Interest Income:
Loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taxable securities . . . . . . . . . . . . . . . . . . . . .
Tax-exempt securities . . . . . . . . . . . . . . . . . .
Federal funds sold and deposits with

Years ended December 31,

2007

2006

2005

2004

2003

(in thousands, except per share amounts)

$ 156,253
18,614
7,923

$ 123,998
20,018
7,042

$

$

99,535
18,135
4,452

$

68,908
17,051
3,770

69,427
11,753
2,575

banks . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1,427

617

85

337

145

Total interest income . . . . . . . . . . . . . . .

184,217

151,675

122,207

90,066

83,900

Interest Expense:
Deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Federal Home Loan Bank advances . . . . . . .
Long-term obligations . . . . . . . . . . . . . . . . . .
Other borrowings . . . . . . . . . . . . . . . . . . . . . .

Total interest expense . . . . . . . . . . . . . .

59,930
11,065
2,177
2,225

75,397

Net Interest Income . . . . . . . . . . . . . . . . . . .
Provision for loan and lease losses . . . . . . . .

108,820
3,605

Net interest income after provision for

loan and lease losses . . . . . . . . . . . . .
Noninterest income . . . . . . . . . . . . . . . . . . . .
Noninterest expense . . . . . . . . . . . . . . . . . . .

Income before income taxes . . . . . . . . . . . . .
Provision for income taxes . . . . . . . . . . . . . .

Net Income . . . . . . . . . . . . . . . . . . . . . . . . . .

Net Income Per Common Share:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . .

Average number of common shares

105,215
27,748
88,829

44,134
11,753

32,381

1.93
1.91

$

$
$

$

$
$

40,838
10,944
1,992
138

53,912

97,763
2,065

95,698
24,672
76,134

44,236
12,133

25,983
3,515
1,583
214

31,295

90,912
1,520

89,392
24,786
72,855

41,323
11,692

16,537
370
1,162
54

18,123

71,943
995

70,948
22,244
61,326

31,866
9,353

18,304
652
1,077
—

20,033

63,867
2,850

61,017
22,784
55,960

27,841
8,319

32,103

$

29,631

$

22,513

$

19,522

2.01
1.99

$
$

1.89
1.87

$
$

1.55
1.52

$
$

1.39
1.37

outstanding (basic)

. . . . . . . . . . . . . . . . . .

16,802

15,946

15,708

14,558

14,039

Average number of common shares

outstanding (diluted) . . . . . . . . . . . . . . . . .
Total assets at year end . . . . . . . . . . . . . . . . .
Long-term obligations . . . . . . . . . . . . . . . . . .
Cash dividends declared . . . . . . . . . . . . . . . .

16,972
$3,178,713
25,519
$
0.66
$

16,148
$2,553,131
22,378
$
0.57
$

15,885
$2,377,322
22,312
$
0.39
$

14,816
$2,176,730
22,246
$
0.26
$

14,215
$1,744,347
22,180
$
0.15
$

(1) These unaudited schedules provide selected financial information concerning the Company that should be
read in conjunction with “Item 7. Management’s Discussion and Analysis of Financial Condition and
Results of Operation” of this report.

20

Selected Quarterly Financial Data (1)

The following table presents selected unaudited consolidated quarterly financial data for each quarter of

2007 and 2006. The information contained in this table reflects all adjustments, which, in the opinion of
management, are necessary for a fair presentation of the results of the interim periods.

2007
Total interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total interest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net interest income . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision for loan and lease losses . . . . . . . . . . . . . . . . . .
Noninterest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Noninterest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income before income tax . . . . . . . . . . . . . . . . . . . .
Provision for income tax . . . . . . . . . . . . . . . . . . . . . . . . . .

First
Quarter

Second
Quarter

Third
Quarter

Fourth
Quarter

Year Ended
December 31,

(in thousands, except per share amounts)

$41,146
16,443

$43,255
17,560

$49,378
20,518

$50,438
20,876

$184,217
75,397

24,703
638
6,177
20,402

9,840
2,557

25,695
329
6,741
20,266

11,841
3,297

28,860
1,231
7,631
22,425

12,835
3,579

29,562
1,407
7,199
25,736

9,618
2,320

108,820
3,605
27,748
88,829

44,134
11,753

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 7,283

$ 8,544

$ 9,256

$ 7,298

$ 32,381

Net income per common share:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$
$

0.45
0.45

$
$

0.53
0.53

$
$

0.53
0.53

$
$

0.41
0.41

$
$

1.93
1.91

2006
Total interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total interest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$35,069
10,763

$37,410
13,108

$39,166
14,761

$40,030
15,280

$151,675
53,912

Net interest income . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision for loan and lease losses . . . . . . . . . . . . . . . . . .
Noninterest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Noninterest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income before income tax . . . . . . . . . . . . . . . . . . . .
Provision for income tax . . . . . . . . . . . . . . . . . . . . . . . . . .

24,306
215
5,973
18,340

11,724
3,536

24,302
250
6,267
21,136

9,183
1,944

24,405
650
6,108
18,098

11,765
3,430

24,750
950
6,324
18,560

11,564
3,223

97,763
2,065
24,672
76,134

44,236
12,133

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 8,188

$ 7,239

$ 8,335

$ 8,341

$ 32,103

Net income per common share:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$
$

0.52
0.51

$
$

0.45
0.45

$
$

0.52
0.52

$
$

0.52
0.52

$
$

2.01
1.99

(1) These unaudited schedules provide selected financial information concerning the Company that should be
read in conjunction with “Item 7. Management’s Discussion and Analysis of Financial Condition and
Results of Operation” of this report.

21

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATION

This discussion should be read in conjunction with our Consolidated Financial Statements and related notes

in “Item 8. Financial Statements and Supplementary Data” of this report. In the following discussion, unless
otherwise noted, references to increases or decreases in average balances in items of income and expense for a
particular period and balances at a particular date refer to the comparison with corresponding amounts for the
period or date for the previous year.

NOTE REGARDING FORWARD LOOKING STATEMENTS

This Annual Report on Form 10-K may be deemed to include forward looking statements, which

management believes to be a benefit to shareholders. These forward looking statements describe management’s
expectations regarding future events and developments such as future operating results, growth in loans and
deposits, continued success of our style of banking and the strength of the local economy. The words “will,”
“believe,” “expect,” “should,” and “anticipate” and words of similar construction are intended in part to help
identify forward looking statements. Future events are difficult to predict, and the expectations described above
are necessarily subject to risk and uncertainty that may cause actual results to differ materially and adversely. In
addition to discussions about risks and uncertainties set forth from time to time in our filings with the SEC,
factors that may cause actual results to differ materially from those contemplated by such forward looking
statements include, among others, the following possibilities: (1) local and national economic conditions are less
favorable than expected or have a more direct and pronounced effect on us than expected and adversely affect
our ability to continue internal growth at historical rates and maintain the quality of our earning assets; (2) a
continued decline in the housing/real estate market; (3) changes in interest rates significantly reduce interest
margins and negatively affect funding sources; (4) deterioration of credit quality that could, among other things,
increase defaults and delinquency risks in the Banks’ loan portfolios (5) projected business increases following
strategic expansion or opening or acquiring new branches are lower than expected; (6) competitive pressure
among financial institutions increases significantly; (7) legislation or regulatory requirements or changes
adversely affect the businesses in which we are engaged; and (8) our ability to realize the efficiencies we expect
to receive from our investments in personnel, acquisitions and infrastructure.

Critical Accounting Policies

We have established certain accounting policies in preparing our Consolidated Financial Statements that are

in accordance with accounting principles generally accepted in the United States. Our significant accounting
policies are presented in Note 1 to the Consolidated Financial Statements in “Item 8. Financial Statements and
Supplementary Data” of this report. Certain of these policies require the use of judgments, estimates and
economic assumptions which may prove inaccurate or are subject to variation that may significantly affect our
reported results of operations and financial position for the periods presented or in future periods. Management
believes that the judgments, estimates and economic assumptions used in the preparation of the Consolidated
Financial Statements are appropriate given the factual circumstances at the time.

We have identified the allowance for loan and lease losses (“ALLL”) as our most critical accounting policy.

The ALLL is established to absorb known and inherent losses in our loan and lease portfolio. Our methodology
in determining the appropriate level of the ALLL includes components for a general valuation allowance in
accordance with Statement of Financial Accounting Standards (“SFAS”) No. 5, Accounting for Contingencies, a
specific valuation allowance in accordance with SFAS No. 114, Accounting by Creditors for Impairment of a
Loan and an unallocated component. Both quantitative and qualitative factors are considered in determining the
appropriate level of the ALLL. Quantitative factors include historical loss experience, delinquency and
charge-off trends, collateral values, past-due and nonperforming loan trends and the evaluation of specific loss
estimates for problem loans. Qualitative factors include existing general economic and business conditions in our

22

market areas as well as the duration of the current business cycle. Changes in any of the factors mentioned could
have a significant impact on our calculation of the ALLL. Our ALLL policy and the judgments, estimates and
economic assumptions involved are described in greater detail in the “Allowance for Loan and Lease Losses and
Unfunded Loan Commitments and Letters of Credit” section of this discussion and in Note 1 to the Consolidated
Financial Statements in “Item 8. Financial Statements and Supplementary Data” of this report.

Executive Summary

At December 31, 2007, total loans were $2.28 billion compared with $1.71 billion in the prior year, an
increase of $573.8 million or 34%. Our increase in total loans during the year was equally divided between
organic growth and the impact of the two acquisitions. Over the past five years, our banking team has generated a
compound annual growth rate for year end loans of 14% inclusive of the impact of our three acquisitions during
this time period. The growth in our loan portfolio has been achieved while maintaining acceptable overall credit
quality as our nonperforming loans represented 0.63% of total loans at December 31, 2007. At year end our
allowance for loan and lease losses was $26.6 million compared to $20.2 million a year ago. The allowance for
loan and lease losses represented 1.17% of our total loan portfolio and 183.94% of total nonperforming loans at
year end compared to 1.18% and 579.94%, respectively, one year ago. Net charge-offs decreased $2.3 million
from the prior year to $380,000 during 2007. The growth in our loan portfolio caused us to increase our provision
for loan and lease losses to $3.6 million during 2007 from $2.1 million during 2006.

Deposits increased $474.7 million to $2.50 billion on December 31, 2007 compared to $2.02 billion one
year earlier. Our increase in deposits during the year was due to $170 million of organic growth coupled with
approximately $305 million resulting from the two acquisitions. Core deposits increased $198 million or 13%, to
$1.67 billion at year end. Over the past five years core deposits have proven to be a stable source of funds with a
compound annual growth rate of 11%. Certificates of deposits increased $276.8 million for 2007. Short-term
borrowings increased $36.7 million from the prior year to $262.7 million at December 31, 2007. The increase in
borrowings was used to fund growth in the loan portfolio.

Total revenues (net interest income plus noninterest income) increased 12% to $136.6 million during 2007

as compared to $122.4 million during 2006. Net interest income increased $11 million to $108.8 million from
$97.8 million in 2006. Noninterest income increased $3.1 million to $27.8 million from $24.7 million in 2006.
The increase in noninterest income was attributed primarily to an increase in service charge income of $1.3
million, an increase in mortgage banking income of $342,000 and an increase in miscellaneous loan fees of
$563,000.

On October 3, 2007, Visa completed a restructuring and issued shares of Visa Inc. common stock to its
financial institution members in contemplation of its initial public offering (“IPO”) presently scheduled to occur
in 2008. After the restructuring, member financial institutions became guarantors of Visa’s litigation liabilities
based upon their proportionate share of the membership base. On November 7, 2007, Visa announced that it had
reached a settlement in the amount of $2.07 billion to resolve certain restraint of trade litigation brought by
American Express. For the 4th quarter 2007, Columbia recognized a pre-tax charge of approximately $1.8
million, or $0.06 per diluted common share, related to the American Express settlement and the remaining
unsettled Discover, Interchange, and Attridge litigation. Of this $1.8 million, $612,000 is the Company’s
proportionate share of the American Express settlement and $1.16 million is the Company’s estimate of the fair
value of potential losses related to the remaining unsettled litigation in accordance with FASB Interpretation
No. 45, Guarantor’s Accounting and Disclosure Requirements for Guarantees, Including Indirect Guarantees of
Indebtedness of Others—an interpretation of FASB Statements No. 5, 57, and 107 and rescission of FASB
Interpretation No. 34. The $1.8 million charge is included in “Legal and professional services” on the
Consolidated Statements of Income in “Item 8. Financial Statements and Supplementary Data” of this report. At
this time the Company will not reflect any value for its membership interest in Visa as a result of the
restructuring. However, if the anticipated IPO is completed, it is expected that Visa will fund an escrow account
with a portion of the proceeds. The escrow account will be for the settlement of Visa’s liabilities associated with

23

restraint of trade actions brought against them. The fair value of the Company’s proportionate Visa interest will
be realized, based upon the value of shares utilized to establish the escrow account (limited to the amount of the
obligation recorded) and shares redeemed for cash. The Company anticipates that its proportionate share of the
Visa IPO proceeds will more than offset its liabilities related to Visa’s litigation matters.

Our net interest margin decreased 14 basis points to 4.35% during 2007 from 4.49% in the prior year. For

the twelve month period, funding costs have increased as our mix of core deposits has shifted within our existing
portfolio toward higher cost core and non-core funding products. In addition, deposits from our third quarter
acquisitions were comprised of a greater percentage of non-core deposit products. We were able to offset a
portion of the increased funding costs with higher yielding assets. The average yield on our loan portfolio
increased 24 basis points to 7.85% during 2007 as compared to 7.61% during the prior year. The average cost of
interest bearing deposits increased 67 basis points to 3.32% from 2.65% in the prior year while our average
borrowing costs increased to 5.69% up from 5.60% in the prior year.

Earnings per diluted share decreased $0.08 to $1.91 during 2007 as compared to $1.99 during 2006. The
decrease in earnings per diluted share reflects the additional common shares issued in our two acquisitions during
2007, thereby increasing our average outstanding shares. Over the last five years our compounded growth rate of
earnings per diluted share was 20%. Our return on average tangible equity, which removes from equity the
impact of goodwill arising from acquisitions, was 14.53% for the year as compared to 15.88% in 2006. Return on
average equity declined to 11.19% in 2007 from 13.50% in 2006.

During 2007 our noninterest expense increased 17%, or $12.7 million, to $88.8 million. This increase is

primarily attributable to increased employee compensation and benefits expense of $7.9 million, increased
occupancy costs of $1.6 million and an increase of $2.8 million in legal and professional services. The increase
in compensation costs was primarily due to increases in our lending and retail functions. The increase in lending
and retail banking staff reflects our investment in the future growth of the organization. Compensation costs were
also increased in excess of $1.9 million due to our two acquisitions. Employee compensation and benefits were
also impacted by increased group medical costs, general wage increases, and expenses related to share-based
payments. Approximately $1.8 million of the increase in legal expenses was related to the Visa litigation reserve
established during the fourth quarter of 2007.

Our efficiency ratio [noninterest expense divided by the sum of net interest income and noninterest income
on a tax equivalent basis, excluding gain (loss) on sale of investment securities, net cost (gain) of OREO, reserve
for VISA litigation liability, and mark-to-market adjustments of interest rate floor instruments] was 61.33% for
2007 and 58.95% for 2006. The year over year deterioration (increase) in our efficiency ratio is due to a higher
growth rate of noninterest expense in proportion to noninterest income. For discussion over the variances in
noninterest expense and noninterest income see the following “Noninterest Income” and “Noninterest Expense”
sections of this discussion.

A priority for us during 2008 is to continue to focus on actively managing our balance sheet in a manner that

minimizes our exposure to potential contraction of our net interest margin in the event of additional declines in
short-term interest rates. In addition, we will focus on expense control and pursue opportunities to reduce
expenses including measures such as branch consolidation. We will continue in our efforts to increase market
share in all the communities we serve through leveraging our strong base of branches in both Washington and
Oregon. As strategic opportunities are identified, we will consider new markets and branch locations that fit both
our economic model and our corporate culture while balancing the need for fiscal restraint based upon changing
general economic conditions.

Results of Operations

Net income for the year increased to $32.4 million compared to $32.1 million in 2006 and $29.6 million in

2005. On a diluted per share basis, net income for the year was $1.91 per share, compared with $1.99 per share in
2006, and $1.87 per share in 2005.

24

Our results of operations are dependent to a large degree on net interest income. We also generate

noninterest income through service charges and fees and merchant services fees. Our operating expenses consist
primarily of compensation, employee benefits, and occupancy. Like most financial institutions, our interest
income and cost of funds are affected significantly by general economic conditions, particularly changes in
market interest rates, and by government policies and the actions of regulatory authorities.

Business Combinations

In July, 2007, the Company acquired all of the outstanding common stock of Mountain Bank Holding
Company (“Mt. Rainier”), the parent company of Mt. Rainier National Bank, headquartered in Enumclaw,
Washington and Town Center Bancorp (“Town Center”), the parent company of Town Center Bank,
headquartered in Portland, Oregon. The acquisitions were consistent with our expansion strategy and added
7 branches in King and Pierce counties and 5 Oregon branches in the North Clackamas and Southeast Portland
areas.

The operating results of Mt. Rainier and Town Center were included in the Company’s operating results

beginning July 23, 2007; consequently, 2007 quarter-end and year-to-date operating results are not directly
comparable to the 2006 results for the same periods. For comparison purposes to prior periods, as of July 23,
2007 Mt. Rainier and Town Center combined contributed $360 million in assets, $287 million in loans and $305
million in deposits.

Net Interest Income

Net interest income is the single largest component of our total revenue. Our net interest income increased
11%, to $108.8 million in 2007 as compared to $97.8 million in 2006 and $90.9 million in 2005. In the current
year interest on loans was a key factor in the growth of our interest income, increasing 26% to $156.3 million.
This compares to 2006 and 2005 loan interest earnings of $124.0 million and $99.5 million, respectively. The
increase in loan interest income during 2007 is primarily due to increased loan volumes, whereas the increase
during 2006 was attributable to higher loan rates. Interest expense increased $21.5 million, or 40%, to $75.4
million during 2007 as compared to $53.9 million in 2006 and $31.3 million in 2005. The upward trend in
interest expense for 2007 is primarily due to a change in the mix of our core deposits shifting to higher cost core
and non-core funding products. The increase in interest expense during 2006 as compared to 2005 was primarily
due to growth in deposits, increased use of FHLB borrowings, and 2005 was the first full year that included
Astoria’s operating results.

Additionally, declining short-term interest rates impacted the net interest margin in 2007, decreasing
14 basis points to 4.35% from 4.49% in 2006 and 4.44% in 2005. Approximately 43% of our loans are tied to
short-term indices such as Prime or LIBOR. This 14 basis point decrease, assuming no other moving parts would
equate to a year over year before tax impact of $3.6 million. Also impacting the margin is the above average loan
growth accompanied by a lag in gathering deposits to fund these loans. We currently fund the difference using
short-term borrowings and wholesale deposits which have higher costs associated with them. Average asset
yields increased 38 basis points with average interest liability yields increasing 59 basis points from 2006.
Decreases in the target Federal Funds rate, such as those occurring subsequent to year-end, may continue to
negatively impact our net interest margin.

In 2006, we began using derivative instruments to add stability to interest income and to manage our
exposure to changes in interest rates. One of the initiatives we undertook to accomplish this objective was the
purchase of three prime interest rate floors for a combined notional amount of $200 million with strike prices
laddered in at 7.25%, 7.50% and 7.75%. We utilized these floors to establish a cash flow hedge with several
pools of our prime based loans to assist in diminishing our exposure to margin compression in a falling rate
environment. Essentially, when the prime rate fell below the strike rate the Company received payment on the

25

difference between the two rates. In March 2006 we paid approximately $3.1 million for the floors which had an
April 2011 expiration date. In January 2008 we elected to take advantage of what we felt was favorable pricing
and sold the floors for $8.1 million. At the time of their sale the floors had a book value of $1.9 million resulting
in a deferred gain of $6.2 million to be recognized through interest income as the originally hedged forecasted
transactions (interest payments on variable-rate loans) affect earnings. We expect to accrete $1.7 million of the
deferred gain through earnings during 2008 and $2.5 million, $1.7 million, and $290,000 in 2009, 2010, and
2011, respectively. Our decision to monetize the gain on these floors removed the uncertainty changing interest
rates would have on their realizable value had we held them to maturity. For additional information on our
derivatives and hedging activities, see Note 18 to the Consolidated Financial Statements in “Item 8. Financial
Statements and Supplementary Data” of this report.

26

Average Balances and Net Interest Revenue

The following table sets forth the average balances of all major categories of interest-earning assets and interest-

bearing liabilities, the total dollar amounts of interest income on interest-earning assets and interest expense on
interest-bearing liabilities, the average yield earned on interest-earning assets and average rate paid on interest-bearing
liabilities by category and in total, net interest income, net interest spread, net interest margin and the ratio of average
interest-earning assets to interest-earning liabilities:

2007

2006

2005

Average

Balances (1) Interest

Average
Rate

Average

Balances (1) Interest

Average
Rate

Average

Balances (1) Interest

Average
Rate

(in thousands)

Interest-Earning Assets
Loans:

Commercial business . . . . . . . . . . . . . . . . $ 686,617 $ 57,393

8.36% $ 592,118 $ 48,958

8.27% $ 551,337 $ 38,534

6.99%

Real estate (2):

One-to-four family residential . . . . . . . .
Commercial and five or more family

residential properties . . . . . . . . . . . . .
Consumer . . . . . . . . . . . . . . . . . . . . . . . . .

Total loans . . . . . . . . . . . . . . . . . . . . .
Securities (3) . . . . . . . . . . . . . . . . . . . . . . . . .
Interest-earning deposits with banks . . . . . . .

Total interest-earning assets . . . . . . .
Other earning assets . . . . . . . . . . . . . . . . . . .
Non-earning assets . . . . . . . . . . . . . . . . . . . .

236,960

20,070

8.47% 110,343

8,736

7.92%

87,263

5,698

6.53%

65,737
13,053

156,253
30,874
1,427

188,554

905,893
161,152

1,990,622
581,122
27,635

2,599,379
42,334
195,449

54,344
11,960

123,998
30,942
617

155,557

7.26% 778,783
8.10% 148,372

7.85% 1,629,616
5.31% 623,631
12,146
5.16%

7.25% 2,265,393
37,725
170,286

$2,473,404

6.98% 718,601
8.06% 137,366

7.61% 1,494,567
4.96% 605,395
2,551
5.08%

6.87% 2,102,513
36,114
152,118

$2,290,745

45,791
9,512

99,535
25,095
85

124,715

6.37%
6.92%

6.66%
4.15%
3.33%

5.93%

Total assets . . . . . . . . . . . . . . . . . . . . $2,837,162

Interest-Bearing Liabilities
Certificates of deposit . . . . . . . . . . . . . . . . . . $ 698,078 $ 31,274
Savings accounts . . . . . . . . . . . . . . . . . . . . . .
467
Interest-bearing demand and money market

111,265

4.48% $ 543,053 $ 20,985
436
0.42% 115,802

3.86% $ 499,916 $ 14,600
409
0.38% 113,160

accounts . . . . . . . . . . . . . . . . . . . . . . . . . . .

994,317

Total interest-bearing deposits . . . . .
Federal Home Loan Bank advances . . . . . . .
Long-term obligations . . . . . . . . . . . . . . . . . .
Other borrowings . . . . . . . . . . . . . . . . . . . . .

Total interest-bearing liabilities . . . .
Demand and other noninterest-bearing . . . . .
deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other noninterest-bearing liabilities . . . . . . .
Shareholders’ equity . . . . . . . . . . . . . . . . . . .

1,803,660
207,521
23,777
40,606

2,075,564

438,474
33,827
289,297

Total liabilities and shareholders’ . . .
equity . . . . . . . . . . . . . . . . . . . . . . . . . $2,837,162

28,189

59,930
11,065
2,177
2,225

75,397

2.84% 879,774

3.32% 1,538,629
5.33% 208,593
22,343
9.16%
2,413
5.48%

3.63% 1,771,978

19,417

40,838
10,944
1,992
138

53,912

2.21% 889,457

2.65% 1,502,533
5.25% 107,651
22,277
8.92%
2,847
5.72%

3.04% 1,635,308

10,974

25,983
3,515
1,583
214

31,295

437,819
25,764
237,843

421,245
19,580
214,612

$2,473,404

$2,290,745

Net interest income (3) . . . . . . . . . . .

$113,157

$101,645

$ 93,420

Net interest spread . . . . . . . . . . . . . . .

Net interest margin . . . . . . . . . . . . . .

Average interest-earning assets to . . . . . . . . .
average interest-bearing liabilities . . . . . . . .

3.62%

4.35%

125.24%

3.83%

4.49%

127.85%

2.92%
0.36%

1.23%

1.73%
3.27%
7.11%
7.52%

1.91%

4.02%

4.44%

128.57%

(1) Nonaccrual loans were included in their respective loan categories. Amortized net deferred loan fees were included in the interest income

calculations. The amortization of net deferred loan fees was $3.5 million in 2007, $2.1 million in 2006, $1.9 million in 2005.

(2) Real estate average balances include real estate construction loans.
(3) Yields on fully taxable equivalent basis, based on a marginal tax rate of 35%

A performance metric that we consistently use to evaluate our success in managing our interest-earning assets and
interest-bearing liabilities is the level of our net interest margin. Our net interest margin (net interest income on a fully-
taxable equivalent basis divided by average interest-earning assets) remained relatively stable during 2007 and 2006
decreasing only 14 basis points [A basis point is 1/100th of 1%, alternatively 100 basis points equals 1.00]. The decline
in our net interest margin during 2007 was primarily due to a shift within our deposit portfolio toward higher cost core

27

and non-core funding products coupled with an increased reliance on borrowings and other higher cost wholesale
funding alternatives. While our net interest margin experienced very modest compression from 2006 to 2007, for
comparative purposes one basis point in the margin equates to approximately $260,000 per year in net interest
income. Accordingly, the 14 basis point reduction in the margin during 2007 negatively impacted pre-tax
earnings by $3.6 million.

Net Interest Income Rate & Volume Analysis

The following table sets forth the total dollar amount of change in interest income and interest expense. The

changes have been segregated for each major category of interest-earning assets and interest-bearing liabilities
into amounts attributable to changes in volume, changes in rates and changes in rates multiplied by volume.
Changes attributable to the combined effect of volume and interest rates have been allocated proportionately to
the changes due to volume and the changes due to interest rates:

2007 Compared to 2006
Increase (Decrease) Due to

2006 Compared to 2005
Increase (Decrease) Due to

Volume

Rate

Total

Volume

Rate

Total

(in thousands)

Interest Income
Loans (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securities (TE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest-earning deposits with banks . . . . . . . . . . . .

$28,337
(2,258)
800

$3,918
2,190
10

$32,255
(68)
810

$10,276
905
488

$14,187
4,942
44

$24,463
5,847
532

Total interest income (TE)

. . . . . . . . . . .

$26,879

$6,118

$32,997

$11,669

$19,173

$30,842

Interest Expense
Deposits:

Certificates of deposit . . . . . . . . . . . . . . . . . . .
Savings accounts . . . . . . . . . . . . . . . . . . . . . . .
Interest-bearing demand . . . . . . . . . . . . . . . . .

$ 6,945
(19)
3,247

$3,344
50
5,525

Total interest on deposits . . . . . . . . . . . .
FHLB advances . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term subordinated debt & trust preferred

obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . .

10,173
(57)

8,919
178

$10,289
31
8,772

19,092
121

$ 1,667
10
(214)

$ 4,718
17
8,657

1,463
5,296

13,392
2,133

$ 6,385
27
8,443

14,855
7,429

131
2,093

54
(6)

185
2,087

6
(25)

403
(51)

409
(76)

Total interest expense . . . . . . . . . . . . . . . . . . . . . . .

$12,340

$9,145

$21,485

$ 6,740

$15,877

$22,617

TE = Taxable equivalent, based on a marginal tax rate of 35%.
(1) Nonaccrual loans were included in their respective loan categories. Amortized net deferred loan fees were
included in the interest income calculations. The amortization of net deferred loan fees was $3.5 million in
2007, $2.1 million in 2006, $1.9 million in 2005.

As evidenced by the table presented above, the $33 million increase in total interest revenue during 2007 as
compared to 2006 was primarily due to the increased volume of loans. The $30.8 million increase in total interest
revenue during 2006, as compared to 2005, was primarily due to increased loan rates and volume coupled with
increasing rates on securities. The $21.5 million increase in total interest expense in 2007, as compared to 2006,
was a result of increased volume and rates on certificates of deposits and interest bearing demand and increased
volume in other borrowings. The $22.6 million increase in total interest expense in 2006, as compared to 2005,
was a result of increased rates paid on certificate of deposits and interest bearing demand accounts and the
increased use of short term borrowings such as Federal Home Loan Bank advances.

28

Provision for Loan and Lease Losses

Our provision for loan and lease losses (“the provision”) was $3.6 million for 2007, compared with $2.1
million for 2006, and $1.5 million for 2005. For the years ended December 31, 2007, 2006, and 2005, net loan
charge-offs amounted to $380,000, $2.7 million and $572,000, respectively. Expressed as a percentage of
average loans, net charge-offs for the years ended December 31, 2007, 2006 and 2005 were 2 basis points, 17
basis points, and 4 basis points, respectively. The charge-offs during 2007, 2006 and 2005 were comprised of
several loans. The increased provision in 2007 as compared to 2006 was primarily due to growth in our loan
portfolio. The high level in net charge offs for 2006 was primarily centered in one “legacy credit” originated in
December of 1999, which was classified as non-performing in November of 2003. The provision is based on
management’s estimates resulting from ongoing modeling and qualitative analysis of the characteristics and
composition of the loan portfolio. For discussion over the methodology used by management in determining the
adequacy of the ALLL see the following “Allowance for Loan and Lease Losses and Unfunded Loan
Commitments and Letters of Credit” section of this discussion.

Noninterest Income

The following table presents the significant components of noninterest income and the related dollar and

percentage change from period to period:

Years ended December 31,

2007

$
change

%
change

2006

$
change

%
change

2005

(in thousands)

Fees and other revenue:

Service charges, loan fees and other

fees . . . . . . . . . . . . . . . . . . . . . . . . . .
Merchant services fees . . . . . . . . . . . . .
Gain (loss) on sale of securities, net . . .
Bank owned life insurance (BOLI) . . . .
Other income . . . . . . . . . . . . . . . . . . . . .

$13,498
8,373
0
1,886
3,991

$1,847
59
(36)
199
1,007

16% $11,651
8,314
1%
(100)%
36
1,687
12%
2,984
34%

$ 341
(166)
30
110
(429)

3% $11,310
8,480
(2)%
6
500%
1,577
7%
3,413
(13)%

Total noninterest income . . . . . . . . . . . .

$27,748

$3,076

12% $24,672

$(114)

0% $24,786

The increase in noninterest income during 2007 was primarily due to increased service charges, fees and
other miscellaneous income earned over a larger customer base. Service charges and other fees increased $1.8
million or 16%. This increase is the result of a change in our deposit account fee structure in conjunction with an
increase in the number of deposit accounts. The increase in deposit accounts results from a combination of
organic growth and accounts obtained from our two acquisitions which closed early in the third quarter.

29

Other Noninterest Income: The following table presents selected items of “other noninterest income” and

the related dollar and percentage change from period to period:

Years ended December 31,

2007

$
change

%
change

2006

$
change

%
change

2005

(in thousands)

Gain on disposal of assets . . . . . . . . . . . . . . . . . .
Mortgage banking . . . . . . . . . . . . . . . . . . . . . . . .
Cash management 12-b1 fees . . . . . . . . . . . . . . .
Letter of credit fees . . . . . . . . . . . . . . . . . . . . . . .
Late charges . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Currency exchange income . . . . . . . . . . . . . . . . .
New Markets Tax Credit dividend . . . . . . . . . . .
Miscellaneous fees on loans . . . . . . . . . . . . . . . .
Interest rate swap income . . . . . . . . . . . . . . . . . .
Credit card fees . . . . . . . . . . . . . . . . . . . . . . . . . .
Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 265
537
399
399
250
316
93
870
225
81
556

$ (60)
249
71
95
18
50
1
633
225
(2)
(273)

(18)% $ 325
288
86%
328
22%
304
31%
232
8%
266
19%
92
1%
237
267%
—
100%
83
(2)%
829
(33)%

$ 26
(833)
41
(10)
21
43
32
135
— —
(12)
128

9% $ 299
(74)% 1,121
287
14%
314
(3)%
211
10%
223
19%
60
53%
102
132%
—
95
701

(13)%
18%

Total other noninterest income . . . . . . . . . .

$3,991

$1,007

34% $2,984

$(429)

(13)% $3,413

Much of the gain on the sale of assets during 2007, 2006 and 2005 consists of the amortized gain on the sale

and lease-back of two buildings which occurred in September 2004. The resulting $1.3 million gain on the sale
was deferred and recognized over the life of the leases, the unamortized gain balance at December 31, 2007 and
2006 was $565,000 and $784,000, respectively, and is included in other liabilities on our consolidated balance
sheets. During 2007, 2006 and 2005 the Company recognized amortized gains associated with the sale and lease-
back transaction of $219,000, 246,000 and $246,000, respectively. The increase in miscellaneous fees on loans
during 2007 is primarily attributable to increased loan prepayment fees.

Noninterest Expense

The following table presents the significant components of noninterest expense and the related dollar and

percentage change from period to period:

Years ended December 31,

2007

$
change

%
change

2006

(in thousands)

$
change

%
change

2005

Compensation . . . . . . . . . . . . . . . . . . . . . . $34,508
12,195
Employee benefits . . . . . . . . . . . . . . . . . .
12,322
Occupancy . . . . . . . . . . . . . . . . . . . . . . . .
3,470
Merchant processing . . . . . . . . . . . . . . . . .
2,391
Advertising and promotion . . . . . . . . . . . .
2,564
Data processing . . . . . . . . . . . . . . . . . . . .
4,912
Legal and professional services . . . . . . . .
Taxes, licenses and fees . . . . . . . . . . . . . .
2,882
Net (gain) cost of other real estate

owned . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5
13,580

$ 6,322
1,612
1,562
109
(191)
250
2,813
383

22% $28,186
15% 10,583
15% 10,760
3,361
3%
2,582
(7)%
2,314
11%
2,099
134%
2,499
15%

$

479
1,005
653
103
604
(590)
(1,404)
481

2% $27,707
9,578
10%
6% 10,107
3,258
3%
1,978
31%
2,904
(20)%
3,503
(40)%
2,018
24%

16
(181)

145%

(11)
(1)% 13,761

(3)
1,951

(8)
38%
17% 11,810

Total noninterest expense . . . . . . . . .

$88,829

$12,695

17% $76,134

$ 3,279

5% $72,855

30

The current year increase in noninterest expense is primarily attributed to increased employee compensation

and benefit costs, higher occupancy expense, legal and professional expense, and taxes, license and fees. The
increase in compensation costs was primarily due to increases in our lending and retail functions. Compensation
costs were also increased in excess of $1.9 million due to our two acquisitions. The increase in compensation and
employee benefits for both periods was also impacted by increased group medical costs, general wage increases,
and expenses related to share based payments. The increase in occupancy expense during 2007 was primarily
related to a general increase in prevailing rents of existing facilities, our expansion efforts within King, Thurston
and Whatcom County markets and our two acquisitions. The increase in legal and professional fees was
attributed to the establishment of our Visa litigation reserve, the Bank of Astoria’s core processing software
conversion, and indirect costs associated with our acquisitions.

Other Noninterest Expense: The following table presents selected items of “other noninterest expense” and

the related dollar and percentage change from period to period:

Years ended December 31,

2007

$
change

%
change

2006

$
change

%
change

2005

(in thousands)

Losses on investments in affordable housing

partnerships (1)

. . . . . . . . . . . . . . . . . . . . . . $

732 $

(38)

(5)% $

770 $

55

8% $

715

Core deposit intangible amortization

(“CDI”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software support & maintenance . . . . . . . . . . .
Federal Reserve Bank processing fees . . . . . . .
Telephone & network communications . . . . . .
Recovery of operational and loan commitment
losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Postage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sponsorships & charitable contributions . . . . .
Travel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Investor relations . . . . . . . . . . . . . . . . . . . . . . .
Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Regulatory premiums . . . . . . . . . . . . . . . . . . . .
Director expenses . . . . . . . . . . . . . . . . . . . . . . .
Employee expenses . . . . . . . . . . . . . . . . . . . . .
ATM Network . . . . . . . . . . . . . . . . . . . . . . . . .
Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . .

719
846
440
1,234

—
1,364
1,367
623
453
228
448
507
423
663
656
2,877

267
126
(400)
114

59%
18%
(48)%
10%

452
720
840
1,120

(85)
53
181
48

537
(16)%
667
8%
27%
659
4% 1,072

—
166
128
(38)
115
59
(25)
238
(19)
83
63
(1,020)

—
0%
1,198
14%
1,239
10%
661
(6)%
338
34%
169
35%
473
(5)%
269
88%
442
(4)%
580
14%
11%
593
(26)% 3,897

50
159
(12)
(38)
31
(19)
3
(49)
16
58
88
1,412

(100)%

(50)
15% 1,039
(1)% 1,251
699
(5)%
307
10%
188
(10)%
470
1%
318
(15)%
426
4%
522
11%
17%
505
57% 2,485

Total other noninterest expense . . . . . . . . $13,580 $ (181)

(1)% $13,761 $1,951

17% $11,810

(1) Losses on investment in affordable housing partnerships. Losses are offset by tax credits which reduce our

income tax liability.

Income Tax

For the years ended December 31, 2007, 2006, and 2005, we recorded income tax provisions of $11.8
million, $12.1 million, and $11.7 million, respectively. The effective tax rate was 26.6% in 2007, 27.4% in 2006
and 28.3% in 2005. Our effective tax rate is less than our statutory rate of 35.52% and has exhibited a declining
trend over the past three years. This decline is primarily due to a significant increase in the amount of tax-exempt
municipal securities held in the investment portfolio, tax exempt earnings on bank owned life insurance, and tax
credits received on investments in affordable housing partnerships. For additional information, see Note 12 to the
Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data” of this report.

31

Financial Condition

Our total assets grew 25% to $3.18 billion at December 31, 2007 from $2.55 billion at December 31, 2006.

Our increase in total assets was primarily due to growth in our loan portfolio which increased 34% or $573.8
million to $2.28 billion. Our investment portfolio decreased 5% or $32.2 million. This decrease was primarily a
result of investment maturities and scheduled principal reductions and prepayments on mortgage-backed
securities. Deposit balances increased $474.7 million or 23% to $2.5 billion. Noninterest bearing deposits
increased $35.9 million to $468.2 million while interest bearing deposits increased $438.8 million to $2 billion.
Short-term borrowings increased 16% or $36.7 million to $262.7 million. The increased borrowings were used to
fund loan growth during 2007. Total equity increased 35% or $89.4 million to $341.7 million due to $32.4
million in net income for 2007 and the issuance of shares related to the two acquisitions.

Investment Portfolio

We invest in securities to generate revenues for the Company, to manage liquidity while minimizing interest

rate risk, and to provide collateral for certain public deposits and short-term borrowings. Consistent with our
investment strategy, during the upcoming year we may purchase or sell securities in response to changes in
interest rates or prepayment characteristics.

The amortized cost amounts represent the Company’s original cost for the investments, adjusted for
accumulated amortization or accretion of any yield adjustments related to the security. The estimated fair values
are the amounts that we believe the securities could be sold for as of the dates indicated. As of December 31,
2007 we had 108 available for sale securities in an unrealized loss position. Based on past experience with these
types of securities and our own financial performance, we have the ability and intent to hold these investments to
maturity or until fair value recovers above cost. We review these investments for other-than-temporary
impairment on an ongoing basis. While our review did not result in an other-than-temporary impairment
adjustment as of December 31, 2007, we will continue to review these investments for possible adjustments in
the future.

Purchases during 2007 totaled $3.7 million while maturities and repayments totaled $49.2 million compared

to purchases of $177.8 million and maturities and repayments of $110.8 million during 2006. At December 31,
2007 U.S. Government agency and government-sponsored enterprise mortgage-backed securities (“MBS”) and
collateralized mortgage obligations (“CMO”) comprised 54% of our investment portfolio, state and municipal
securities were 35%, and U.S. government-sponsored enterprise securities were 11%. There was no impairment
charge recognized during 2007, 2006 or 2005. Our entire investment portfolio is categorized as available for sale
and carried on our balance sheet at their fair values. The average duration of our investment portfolio was 4 years
and 8 months at December 31, 2007. For further information on our investment portfolio see Note 4 of the
Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data” of this report.

32

The following table presents the contractual maturities and weighted average yield of our investment

portfolio:

Securities Available for Sale

December 31, 2007

Amortized
Cost

Fair
Value

Yield

(in thousands)

U.S. Government-sponsored enterprise
Due through 1 year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 1 through 5 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 17,731
43,406

$ 17,678
43,622

3.65%
4.04%

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 61,137

$ 61,300

3.93%

U.S. Government agency and government-sponsored enterprise mortgage-

backed securities & collateralized mortgage obligations (1)

Due through 1 year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 1 through 5 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 5 through 10 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 10 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

560
98
131,543
172,274

$

556
97
130,904
172,185

3.35%
4.05%
4.63%
5.20%

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$304,475

$303,742

4.95%

State and municipal securities (2)
Due through 1 year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 1 through 5 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 5 through 10 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 10 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

1,099
10,407
31,134
148,033

$

1,094
10,695
31,484
150,692

2.42%
6.01%
5.39%
6.19%

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$190,673

$193,965

6.03%

Other securities
Due through 1 year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
After 10 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

1,400
1,000

2,400

$

$

1,400
959

4.71%
4.60%

2,359

4.87%

(1) The maturities reported for mortgage-backed securities collateralized mortgage obligations are based on

contractual maturities and principal amortization.

(2) Yields on fully taxable equivalent basis, based on a marginal tax rate of 35%.

33

Loan Portfolio

We are a full service commercial bank, which originates a wide variety of loans, and concentrates its
lending efforts on originating commercial business and commercial real estate loans. The following table sets
forth our loan portfolio by type of loan for the dates indicated:

December 31,

2007

% of
Total

2006

% of
Total

2005

% of
Total

2004

% of
Total

2003

% of
Total

$ 762,365

33.4% $ 617,899

36.1% $ 570,974

36.5% $ 488,157

35.9% $ 381,658

35.4%

(in thousands)

60,991

2.7

51,277

3.0

74,930

4.8

49,580

3.7

47,430

4.4

852,139

913,130

37.3

40.0

687,635

738,912

40.3

43.3

651,393

726,323

41.6

46.4

595,775

645,355

43.8

47.5

472,836

520,266

43.8

48.2

269,115

11.8

92,124

5.4

41,033

2.6

26,832

2.0

15,577

1.4

165,490

434,605

176,559

7.2

19.0

7.8

115,185

207,309

147,782

6.8

12.2

8.6

89,134

130,167

140,110

5.7

8.3

9.0

70,108

96,940

132,130

5.1

7.1

9.7

58,998

74,575

104,240

5.5

6.9

9.7

2,286,659

100.2

1,711,902

100.2

1,567,574

100.2

1,362,582

100.2

1,080,739

100.2

(3,931)

(0.2)

(2,940)

(0.2)

(2,870)

(0.2)

(2,839)

(0.2)

(2,437)

(0.2)

Commercial business . . . . . . . .
Real estate:
One-to-four family

residential

. . . . . . . . . . . . . . .

Commercial and five or more

family residential
properties . . . . . . . . . . . . . . . .

Total real estate . . . . . . . . . . . . .
Real estate construction:
One-to-four family

residential

. . . . . . . . . . . . . . .

Commercial and five or more

family residential
properties . . . . . . . . . . . . . . . .

Total real estate construction . . .
Consumer . . . . . . . . . . . . . . . . .
Subtotal . . . . . . . . . . . . . . . . . . .
Less deferred loan fees and

other . . . . . . . . . . . . . . . . . . . .

Total loans . . . . . . . . . . . . . . . . .

$2,282,728

100.0% $1,708,962

100.0% $1,564,704

100.0% $1,359,743

100.0% $1,078,302

100.0%

Loans held for sale . . . . . . . . . . .

$

4,482

$

933

$

1,850

$

6,019

$

10,640

At December 31, 2007, total loans were $2.28 billion compared with $1.71 billion in the prior year, an
increase of $573.8 million or 34%. We experienced significant growth in commercial business, commercial real
estate, and real estate construction loans. Total loans at December 31, 2007 represented 72% of total assets up
from 66% at December 31, 2006. The compound annual growth rate of our loan portfolio over the last five years
is 14%.

Commercial Business Loans: Commercial loans increased $148.9 million, or 24%, to $757.6 million from

year-end 2006, representing 33% of total loans at year end. We are committed to providing competitive
commercial banking in our primary market areas. We expect our commercial lending focus to center around
expanding our existing banking relationships with businesses and business owners while continuing to build new
customer relationships.

Real Estate Loans: Residential one to four family loans are used by us to collateralize advances from the
FHLB. Our underwriting standards require that one-to-four family portfolio loans generally be owner-occupied
and that loan amounts not exceed 80% (90% with private mortgage insurance) of the appraised value or cost,
whichever is lower, of the underlying collateral at origination. We utilize an outsourced residential lending
underwriting platform. Residential loans are originated on a pre-sold basis provided they meet the underwriting
criteria established by our third party provider. If circumstances warrant, we may originate and retain loans that
fall outside the scope of our third party provider’s underwriting guidelines. However, we do not underwrite
residential real estate loans for the subprime market.

Commercial and five or more family residential real estate loans reflect a mix of owner occupied and

income property transactions. Generally, these loans are made to borrowers who have existing banking
relationships with us. Our underwriting standards generally require that the loan-to-value ratio for these loans not
exceed 75% of appraised value or cost, whichever is lower, and that commercial properties maintain debt

34

coverage ratios (net operating income divided by annual debt servicing) of 1.2 or better. However, underwriting
standards can be influenced by competition, economic conditions, and other factors. We endeavor to maintain the
highest practical underwriting standards while balancing the need to remain competitive in our lending practices.

Real Estate Construction Loans: We originate a variety of real estate construction loans. One-to-four
family residential construction loans are originated for the construction of custom homes (where the home buyer
is the borrower) and to provide financing to builders for the construction of pre-sold homes and speculative
residential construction. The increase in real estate construction loans resulted from the contribution of our new
Builder Banking team added late in the fourth quarter of 2006 and the addition of construction loans existing at
the time of closing within the portfolios of Mt. Rainier National Bank and Town Center Bank. We endeavor to
limit our construction lending risk through adherence to strict underwriting procedures. Total real estate and real
estate construction loans comprised 59% of our loan portfolio as of December 31, 2007 which is an increase from
the 55.5% at December 31, 2006.

Consumer Loans: Consumer loans made by us include automobile loans, boat and recreational vehicle

financing, home equity and home improvement loans, and miscellaneous personal loans.

Foreign Outstanding: We are not involved with loans to foreign companies and foreign countries.

For additional information on our loan portfolio, including amounts pledged as collateral on borrowings, see

Note 6 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data” of
this report.

Maturities and Sensitivities of Loans to Changes in Interest Rates

The following table presents the maturity distribution of our commercial and real estate construction loan

portfolios and the sensitivity of these loans due after one year to changes in interest rates as of December 31,
2007:

(in thousands)

Maturing

Due
Through
1 Year

Over 1
Through
5 Years

Over 5
Years

Total

Commercial business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Real estate construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$516,112
360,534

$175,810
40,547

$ 70,443
33,524

$ 762,365
434,605

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$876,646

$216,357

$103,967

$1,196,970

Fixed rate loans due after 1 year
. . . . . . . . . . . . . . . . . . . . . . . . .
Variable rate loans due after 1 year . . . . . . . . . . . . . . . . . . . . . . .

$160,745
55,612

$ 89,815
14,152

$ 250,560
69,764

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$216,357

$103,967

$ 320,324

Risk Elements

The extension of credit in the form of loans or other credit substitutes to individuals and businesses is one of
our principal business activities. Our policies and applicable laws and regulations require risk analysis as well as
ongoing portfolio and credit management. We manage our credit risk through lending limit constraints, credit
review, approval policies, and extensive, ongoing internal monitoring. We also manage credit risk through
diversification of the loan portfolio by type of loan, type of industry, type of borrower, and by limiting the
aggregation of debt to a single borrower.

In analyzing our existing portfolio, we review our consumer and residential loan portfolios by their

performance as a pool of loans, since no single loan is individually significant or judged by its risk rating, size or

35

potential risk of loss. In contrast, the monitoring process for the commercial business, private banking, real estate
construction, and commercial real estate portfolios includes periodic reviews of individual loans with risk ratings
assigned to each loan and performance judged on a loan by loan basis.

We review these loans to assess the ability of our borrowers to service all interest and principal obligations

and, as a result, the risk rating may be adjusted accordingly. In the event that full collection of principal and
interest is not reasonably assured, the loan is appropriately downgraded and, if warranted, placed on non-accrual
status even though the loan may be current as to principal and interest payments. Additionally, we assess whether
an impairment of a loan warrants specific reserves or a write-down of the loan. For additional discussion on our
methodology in managing credit risk within our loan portfolio see the following “Allowance for Loan and Lease
Losses and Unfunded Loan Commitments and Letters of Credit” section and Note 1 to the Consolidated
Financial Statements in “Item 8. Financial Statements and Supplementary Data” of this report.

Loan policies, credit quality criteria, portfolio guidelines and other controls are established under the
guidance of our Chief Credit Officer and approved, as appropriate, by the Board. Credit Administration, together
with the loan committee, has the responsibility for administering the credit approval process. As another part of
its control process, we use an independent internal credit review and examination function to provide assurance
that loans and commitments are made and maintained as prescribed by our credit policies. This includes a review
of documentation when the loan is initially extended and subsequent on-site examination to ensure continued
performance and proper risk assessment.

Nonperforming Loans The Consolidated Financial Statements are prepared according to the accrual basis
of accounting. This includes the recognition of interest income on the loan portfolio, unless a loan is placed on
nonaccrual status, which occurs when there are serious doubts about the collectibility of principal or interest. Our
policy is generally to discontinue the accrual of interest on all loans past due 90 days or more and place them on
nonaccrual status.

Nonperforming Assets: Nonperforming assets consist of: (i) nonaccrual loans, which generally are loans
placed on a nonaccrual basis when the loan becomes past due 90 days or when there are otherwise serious doubts
about the collectibility of principal or interest within the existing terms of the loan; (ii) in most cases restructured
loans, for which concessions, including the reduction of interest rates below a rate otherwise available to that
borrower or the deferral of interest or principal, have been granted due to the borrower’s weakened financial
condition (interest on restructured loans is accrued at the restructured rates when it is anticipated that no loss of
original principal will occur); (iii) other real estate owned; and (iv) other personal property owned.
Nonperforming assets totaled $14.6 million, or 0.46% of year-end assets at December 31, 2007, compared to
$3.5 million or 0.14% of year end assets at December 31, 2006.

36

The following table sets forth information with respect to our nonaccrual loans, restructured loans, total
nonperforming loans (nonaccrual loans plus restructured loans), other real estate owned, other personal property
owned, total nonperforming assets, accruing loans past-due 90 days or more, and potential problem loans:

Nonaccrual:

December 31,

2007

2006

2005

2004

2003

(in thousands)

Commercial business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 2,170 $ 1,777 $ 4,316 $ 6,587 $ 9,987
Real Estate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
One-to-four family residential . . . . . . . . . . . . . . . . . .
Commercial and five or more family residential real
estate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Real Estate Construction . . . . . . . . . . . . . . . . . . . . . . . . . .
One-to-four family residential . . . . . . . . . . . . . . . . . .
Consumer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7,317
838

—
41

663
995

—
820

—
54

3,476

1,245

204

376

366

217

365

375

440

—

Total nonaccrual loans . . . . . . . . . . . . . . . . . . . . . . . .

14,005

2,414

4,733

8,222

13,255

Restructured:

Commercial business . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
One-to-four family residential construction . . . . . . . . . . . .

Total restructured loans . . . . . . . . . . . . . . . . . . . . . . .

456
—

456

Total nonperforming loans . . . . . . . . . . . . . . . . . . . . .
Other real estate owned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other personal property owned . . . . . . . . . . . . . . . . . . . . . . . . .

14,461
181
—

1,066
—

1,066

3,480
—
—

124
—

124

4,857
18
—

227
—

227

8,449
680
—

—
—

—

13,255
1,452
691

Total nonperforming assets . . . . . . . . . . . . . . . . . . . . $14,642 $ 3,480 $ 4,875 $ 9,129 $15,398

4
Accruing loans past-due 90 days or more . . . . . . . . . . . . . . . . . $ — $ — $ — $
920 $ 1,338
106 $
Foregone interest on nonperforming loans . . . . . . . . . . . . . . . . $
Interest recognized on nonperforming loans . . . . . . . . . . . . . . . $
386
101 $
45 $
Potential problem loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 2,343 $ 2,288 $ 2,269 $ 2,321 $ 1,342
Allowance for loan and lease losses . . . . . . . . . . . . . . . . . . . . . . $26,599 $20,182 $20,829 $19,881 $20,261
Allowance for loan and lease losses to nonperforming loans . .
Allowance for loan and lease losses to nonperforming assets . .
Nonperforming loans to year end loans . . . . . . . . . . . . . . . . . . .
Nonperforming assets to year end assets . . . . . . . . . . . . . . . . . .

183.94% 579.94% 428.84% 235.31% 152.86%
181.66% 579.94% 427.26% 217.78% 131.58%
0.63% 0.20% 0.31% 0.62% 1.23%
0.46% 0.14% 0.21% 0.42% 0.88%

814 $
244 $

497 $
202 $

4 $

At December 31, 2007 nonperforming assets increased to 0.46% of period end assets up from 0.14% of

period-end assets at December 31, 2006. The increase in nonperforming assets during the year is primarily
centered in three lending relationships. The first relationship is a single $4.7 million credit originated in October
of 2006 in which Columbia Bank participates with another lender who acts as agent in the transaction. The
borrower is engaged in the business of selling residential lots to builders for the purpose of constructing single
family residences. The borrower’s inability to obtain final plat approval prior to the expiration of agreements for
the sale of lots at a predetermined price combined with softening market conditions resulted in new agreements
for the sale of lots at prices reduced from the original agreements. Given these developments, management
believes the conservative course of action is to place the loan on nonaccrual until a restructure of the debt is
completed. The second relationship is for money we advanced in 2005 for the construction of an office building
in Oregon; the building has now been completed with the exception of certain tenant improvements. However,
the loans became past due as the borrower encountered operational challenges including delays, cost overruns
and the inability to lease up the building as originally anticipated. We are pursuing our remedies in accordance
with the loan agreements which evidence this transaction. The final relationship is a single $2.4 million credit
which reflected continued stress in real estate-related lending.

37

The remaining nonperforming assets are centered in a small number of lending relationships which

management considers adequately reserved. Generally these relationships are well collateralized, though loss of
principal on certain of these loans will remain in question until the loans are paid or collateral is liquidated. The
Company will continue its collection efforts and liquidation of collateral to recover as large a portion of the
nonaccrual assets as possible. Substantially, all nonperforming loans are to borrowers within the states of
Washington and Oregon.

Other Real Estate Owned: As of December 31, 2007 there were two loans in other real estate loans which is

comprised of property from foreclosed real estate loans. This reflects a current year increase of $181,000
compared to a decrease of $18,000 at December 31, 2006.

Other Personal Property Owned: Other personal property owned (“OPPO”) is comprised of other, non-real

estate property from foreclosed loans. There were no OPPO assets at December 31, 2007 and 2006.

Potential Problem Loans: Potential problem loans are loans which are currently performing and are not on

nonaccrual status, restructured or impaired, but about which there are sufficient doubts as to the borrower’s
future ability to comply with repayment terms and which may later be included in nonaccrual, past due,
restructured or impaired loans. Potential problem loans totaled $2.3 million at year end 2007 and 2006. For
additional information on our nonperforming loans see Note 6 to our Consolidated Financial Statements in “Item
8. Financial Statements and Supplementary Data” of this report.

Allowance for Loan and Lease Losses and Unfunded Loan Commitments and Letters of Credit

We maintain an allowance for loan and lease losses (“ALLL”) to absorb losses inherent in the loan

portfolio. The size of the ALLL is determined through quarterly assessments of the probable estimated losses in
the loan portfolio. Our methodology for making such assessments and determining the adequacy of the ALLL
includes the following key elements:

1. General valuation allowance consistent with SFAS No. 5, “Accounting for Contingencies.”

2. Criticized/classified loss reserves on specific relationships. Specific allowances for identified problem
loans are determined in accordance with SFAS No. 114, “Accounting by Creditors for Impairment of a
Loan.”

3.

The unallocated allowance provides for other credit losses inherent in our loan portfolio that may not
have been contemplated in the general and specific components of the allowance. This unallocated
amount generally comprises less than 5% of the allowance. The unallocated amount is reviewed
periodically based on trends in credit losses, the results of credit reviews and overall economic trends.

On a quarterly basis our Chief Credit Officer reviews with Executive Management and the Board of

Directors the various additional factors that management considers when determining the adequacy of the ALLL,
including economic and business condition reviews. Factors which influenced management’s judgment in
determining the amount of the additions to the ALLL charged to operating expense include the following as of
the applicable balance sheet dates:

1.

Existing general economic and business conditions affecting our market place

2. Credit quality trends, including trends in nonperforming loans

3. Collateral values

4.

Seasoning of the loan portfolio

5. Bank regulatory examination results

6.

Findings of internal credit examiners

7. Duration of current business cycle

38

The ALLL is increased by provisions for loan and lease losses (“provision”) charged to expense, and is
reduced by loans charged off, net of recoveries. While we believe the best information available is used by us to
determine the ALLL, unforeseen market conditions could result in adjustments to the ALLL, affecting net
income, if circumstances differ from the assumptions used in determining the ALLL.

In addition to the ALLL, we maintain an allowance for unfunded loan commitments and letters of credit.

We report this allowance as a liability on our Consolidated Balance Sheet. We determine this amount using
estimates of the probability of the ultimate funding and losses related to those credit exposures. This
methodology is similar to the methodology we use for determining the adequacy of our ALLL. For additional
information on our allowance for unfunded loan commitments and letters of credit, see Note 7 to the
Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data” of this report.

Analysis of the ALLL

The following table provides an analysis of our loss experience by loan type for the last five years:

Total loans, net at year end (1) . . . . . . . . . . . . . . . . . . . . . . . . . $2,282,728 $1,708,962 $1,564,704 $1,359,743 $1,078,302

Daily average loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,990,622 $1,629,616 $1,494,567 $1,186,506 $1,128,941

December 31,

2007

2006

2005

2004

2003

(in thousands)

Balance of ALLL at beginning of period . . . . . . . . . . . . . . . . . $
Balance established through acquisition . . . . . . . . . . . . . . . . . .
Charge-offs

Commercial business . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Real Estate:

One-to-four family residential . . . . . . . . . . . . . . . . . .
Commercial and 5 or more family residential

properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Real Estate Construction:

One-to-four family residential construction . . . . . . .
Commercial and five or more family residential

properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consumer

—
(432)

Total charge-offs . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(1,213)

Recoveries

20,182 $
3,192

20,829 $
—

19,881 $
—

20,261 $
1,367

19,171
—

(781)

(2,077)

(386)

(2,490)

(2,210)

—

—

—

—

(9)

—

—
(1,109)

(3,195)

—

—

—

—

—

—

(665)
(221)

(260)
(292)

(1)

—

(26)

—
(315)

(1,272)

(3,042)

(2,552)

Commercial business . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Real Estate:

One-to-four family residential . . . . . . . . . . . . . . . . . .
Commercial and 5 or more family residential

properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Real Estate Construction:

One-to-four family residential construction . . . . . . .
Commercial and five or more family residential

properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consumer

Total recoveries . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

530

—

12

—

—
291

833

233

218

20

83

7

—
140

483

—

—

—

326
156

700

124

1

—

25

—
150

300

728

—

—

5

—
59

792

Net charge-offs . . . . . . . . . . . . . . . . . . . . . . . . .
Provision charged to expense . . . . . . . . . . . . . . . . . . . . . . . . . .

(380)
3,605

(2,712)
2,065

(572)
1,520

(2,742)
995

(1,760)
2,850

Balance of ALLL at year end . . . . . . . . . . . . . . . . . . . . . . $

26,599 $

20,182 $

20,829 $

19,881 $

20,261

Net charge-offs to average loans outstanding . . . . . . . . . . . . . .
Allowance for loan and lease losses to year end loans (1) . . . .

0.02%
1.17%

0.17%
1.18%

0.04%
1.33%

0.23%
1.46%

0.16%
1.88%

(1) Excludes loans held for sale

39

The increase in the loan and lease loss provision during 2007 was due primarily to loan growth. The

increase in the provision for 2006 was a function of higher net charge-offs and loan growth.

We have used the same methodology for ALLL calculations during 2007, 2006 and 2005. Adjustments to

the percentages of the ALLL allocated to loan categories are made based on trends with respect to delinquencies
and problem loans within each pool of loans. There were no significant changes during 2007 in estimation
methods or assumptions that affected our methodology for assessing the appropriateness of the ALLL. We
maintain a conservative approach to credit quality and will continue to prudently add to our ALLL as necessary
in order to maintain adequate reserves. Our credit quality measures weakened modestly during 2007, moving
closer to historical levels as 2006 results were among the strongest in our history. We carefully monitor the loan
portfolio and continue to emphasize the importance of credit quality while continuously strengthening our loan
monitoring systems and controls.

Allocation of the ALLL

The table below sets forth the allocation of the ALLL by loan category:

2007

2006

December 31,

2005

2004

2003

Balance at End of Period
Applicable to:

Amount

% of
Total
Loans* Amount

% of
Total
Loans* Amount

% of
Total
Loans* Amount

% of
Total
Loans* Amount

% of
Total
Loans*

Commercial business . . . . $ 7,068
Real estate and
construction:

One-to-four family

7,648

residential

. . . . . .
Commercial and five
or more family
residential
properties . . . . . . . 11,170
713
—

. . . . . . . . . . . .
Consumer
Unallocated . . . . . . . . . . .

33.4% $ 9,628

36.1% $12,060

36.5% $10,222

35.9% $12,879

35.4%

(in thousands)

14.5

1,134

8.4

809

7.4

678

5.7

890

5.8

44.3
7.8
—

8,841
281
298

46.9
8.6
—

6,663
677
620

47.1
9.0
—

7,995
985
1

48.7
9.7
—

5,116
1,376
—

49.1
9.7
—

Total

. . . . . . . . . . . . . . . . $26,599

100.0% $20,182

100.0% $20,829

100.0% $19,881

100.0% $20,261

100.0%

*

Represents the total of all outstanding loans in each category as a percent of total loans outstanding.

Deposits

The following table sets forth the average amount of and the average rate paid on each significant deposit

category:

Years ended December 31,

2007

Average
Deposits

Rate

2006

Average
Deposits

Rate

2005

Average
Deposits

Interest bearing demand (1) . . . . . . . . . . . . . . . . .
Savings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Certificates of deposit . . . . . . . . . . . . . . . . . . . . .

$ 994,317
111,265
698,078

2.84% $ 879,774
115,802
0.42%
543,053
4.48%

2.21% $ 889,457
113,160
0.38%
499,916
3.86%

Total interest-bearing deposits . . . . . . . . . . . . . .
Demand and other non-interest bearing . . . . . . .

1,803,660
438,474

3.32% 1,538,629
437,819

2.65% 1,502,533
421,245

Total average deposits . . . . . . . . . . . . . . . . .

$2,242,134

$1,976,448

$1,923,778

Rate

1.23%
0.35%
2.92%

1.73%

(1)

Interest-bearing demand deposits include interest-bearing checking accounts and money market accounts.

40

During 2007 our total average deposits increased $265.7 million, or 13% as compared to $52.7 million or

3% during 2006. Our focus in increasing our deposit base is centered on core deposit growth, which includes
interest and non-interest bearing demand, money market, and savings accounts. Average core deposits increased
$110.7 million during 2007 and $9.5 million during 2006.

Competitive pressure from banks in our market areas with a strained liquidity postures has slowed our
deposit growth but, in the long-term, we anticipate continued growth in our core deposits through both the
addition of new customers and our current client base. However, as short-term rates decrease our cost of funds
may not decline proportionally due to changes in our mix of interest bearing and non-interest bearing accounts,
growth in higher yielding deposits, and competitive pressures.

We have established a branch system to serve our customers and business depositors. In addition,

management’s strategy for funding asset growth is to make use of brokered and other wholesale deposits on an
as-needed basis. At December 31, 2007 brokered and other wholesale deposits (excluding public deposits)
totaled $72 million or 3% of total deposits compared to $10.5 million or less than 1% of total deposits, at
year-end 2006.

The following table sets forth the amount outstanding of time certificates of deposit and other time deposits

in amounts of $100,000 or more by time remaining until maturity and percentage of total deposits:

December 31, 2007

Time Certificates of Deposit
of $100,000 or More

Other Time Deposits
of $100,000 or More

Amounts maturing in:

Three months of less . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 3 through 6 months . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 6 through 12 months . . . . . . . . . . . . . . . . . . . . . . . . .
Over 12 months . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Amount

$221,415
90,486
83,961
35,002

(in thousands)
9%
4%
3%
1%

$ 8,684
51,395
3,488
8,454

Total

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$430,864

17%

$72,021

0%
2%
0%
0%

3%

Percent
of Total
Deposits

Amount

Percent
of Total
Deposits

Other time deposits of $100,000 or more set forth in the table above represent brokered and wholesale
deposits. We use brokered and other wholesale deposits as part of our strategy for funding growth. In the future,
we anticipate continuing the use of such deposits to fund loan demand or treasury functions.

Short-Term Borrowings

Our short-term borrowings consist of FHLB advances and securities repurchase agreements. We utilize
these borrowings as a supplement to our funding sources. FHLB advances are secured by one-to-four family real
estate mortgages, investment securities, and certain other assets. Securities repurchase agreements are secured by
investments. We anticipate we will continue to rely on the same funding sources in the future, and will use those
funds primarily to make loans and purchase securities.

The following table sets forth the details of FHLB advances:

Years ended December 31,

2007

2006

2005

(in thousands)

FHLB Advances
Balance at year end . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Average balance during the year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum month-end balance during the year
. . . . . . . . . . . . . . . . . . . . . . . . .
Weighted average rate during the year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weighted average rate at December 31,

$257,670
$207,521
$264,250

$205,800
$208,594
$303,000

$ 94,400
$107,651
$194,200

5.27%
4.59%

5.25%
5.56%

3.27%
4.33%

41

For additional information on our borrowings, including amounts pledged as collateral, see Note 11 to the

Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data” of this report.

Long-Term Borrowings

During 2001, we, participated in a pooled trust preferred offering through our subsidiary trust (the “Trust”),
whereby the trust issued $22.0 million of 30 year floating rate capital securities. The capital securities constitute
guaranteed preferred beneficial interests in debentures issued by the trust. The debentures had an initial rate of
7.29% and a rate of 8.54% at December 31, 2007. The floating rate is based on the 3-month LIBOR plus 3.58% and
is adjusted quarterly. Through the Trust we may call the debt at ten years at par, allowing us to retire the debt early
if conditions are favorable. Effective December 31, 2003, we adopted Financial Accounting Standards Board
Interpretation No. 46 “Consolidation of Variable Interest Entities” whereby the Trust was deconsolidated with the
result being that the trust preferred obligations were reclassified as long-term subordinated debt on our
December 31, 2003 Consolidated Balance Sheets and our related investment in the Trust was recorded in “other
assets” on the Consolidated Balance Sheets. Through the recent Town Center Bancorp acquisition, the Company
assumed an additional $3.0 million in floating rate trust preferred obligations; these debentures had a rate of 8.99%
at December 31, 2007. The floating rate is based on the 3-month LIBOR plus 3.75% and is adjusted quarterly.

Additionally, we have a $20.0 million line of credit with a large commercial bank with an interest rate

indexed to LIBOR. At December 31, 2007 and 2006, the outstanding balance was $5.0 million and $0,
respectively with an interest rate of 6.23% at December 31, 2007. In the event of discontinuance of the line by
either party, we have up to two years to repay any outstanding balance. For additional information on our
borrowings, see Note 11 to the Consolidated Financial Statements in “Item 8. Financial Statements and
Supplementary Data” of this report.

Contractual Obligations & Commitments

We are party to many contractual financial obligations, including repayment of borrowings, operating and
equipment lease payments, and commitments to extend credit. The table below presents certain future financial
obligations of the Company:

Payments due within time period at December 31, 2007

0-12
Months

1-3
Years

4-5
Years

Due after
Five
Years

Operating & equipment leases . . . . . . . . . . . . . . . . . . . . . . . .
Capital lease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FHLB advances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term subordinated debt . . . . . . . . . . . . . . . . . . . . . . . . .

$

3,575
4
256,670
5,061
—

(in thousands)
$5,953
—
—
—
—

$11,698
—
—
—
25,519

$6,518
—
1,000
—
—

Total

$ 27,744
4
257,670
5,061
25,519

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$265,310

$7,518

$5,953

$37,217

$315,998

At December 31, 2007, we had commitments to extend credit of $857.6 million compared to $764.3 million

at December 31, 2006. For additional information regarding future financial commitments, see Note 16 to our
Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data” of this report.

Liquidity and Sources of Funds

Our primary sources of funds are net income, loan repayments, maturities and principal payments on
available for sale investments, customer deposits, advances from the FHLB, securities repurchase agreements
and other borrowings. These funds are used to make loans, purchase investments, meet deposit withdrawals and
maturing liabilities and cover operational expenses. Scheduled loan repayments and core deposits have proved to
be a relatively stable source of funds while other deposit inflows and unscheduled loan prepayments are

42

influenced by interest rate levels, competition and general economic conditions. We manage liquidity through
monitoring sources and uses of funds on a daily basis and had unused credit lines with the FHLB and a large
commercial bank of $51.0 million and $15.0 million, respectively, at December 31, 2007, that are available to us
as a supplemental funding source. The holding company’s sources of funds are dividends from its banking
subsidiaries which are used to fund dividends to shareholders and cover operating expenses.

Capital Expenditures

Capital expenditures, primarily consisting of an additional branch location as well as ATM network and

information technology-related expenditures, are anticipated to be approximately $8.9 million during 2008.

See the Statement of Cash Flows of the Consolidated Financial Statements in “Item 8. Financial Statements
and Supplementary Data” of this report for additional information regarding our sources and uses of funds during
2007 and 2006.

Capital

Our shareholders’ equity increased to $341.7 million at December 31, 2007, from $252.3 million at

December 31, 2006. The increase is due primarily to net income for the year of $32.4 million and the issuance of
additional shares related to the two third quarter acquisitions. Shareholders’ equity was 10.75% and 9.88% of
total assets at December 31, 2007 and 2006.

Banking regulations require bank holding companies to maintain a minimum “leverage” ratio of core capital

to adjusted quarterly average total assets of at least 3%. In addition, banking regulators have adopted risk-based
capital guidelines, under which risk percentages are assigned to various categories of assets and off-balance sheet
items to calculate a risk-adjusted capital ratio. Tier I capital generally consists of common shareholders’ equity
and trust preferred obligations, less goodwill and certain identifiable intangible assets, while Tier II capital
includes the allowance for loan losses and subordinated debt, both subject to certain limitations. Regulatory
minimum risk-based capital guidelines require Tier I capital of 4% of risk-adjusted assets and total capital
(combined Tier I and Tier II) of 8% to be considered “adequately capitalized”.

Federal Deposit Insurance Corporation regulations set forth the qualifications necessary for a bank to be

classified as “well capitalized”, primarily for assignment of FDIC insurance premium rates. To qualify as “well
capitalized,” banks must have a Tier I risk-adjusted capital ratio of at least 6%, a total risk-adjusted capital ratio
of at least 10%, and a leverage ratio of at least 5%. Failure to qualify as “well capitalized” can negatively impact
a bank’s ability to expand and to engage in certain activities. The Company and its banking subsidiaries qualify
as “well-capitalized” at December 31, 2007 and 2006.

The following table sets forth the Company’s and its banking subsidiaries capital ratios at December 31,

2007 and 2006:

Company

Columbia Bank

Astoria

Requirements

2007

2006

2007

2006

2007

2006

Adequately
capitalized

Well-
capitalized

Total risk-based capital ratio . . . . . 10.90% 12.97% 10.49% 12.52% 12.61% 14.79%
9.87% 11.82% 9.47% 11.38% 11.42% 13.61%
Tier 1 risk-based capital ratio . . . . .
8.54% 9.54% 8.23% 9.32% 9.50% 10.23%
Leverage ratio . . . . . . . . . . . . . . . .

8%
4%
4%

10%
6%
5%

Dividends

The following table sets forth the dividends paid per common share and the dividend payout ratio (dividends

paid per common share divided by basic earnings per share):

Years ended December 31,

2007

2006

2005

Dividends paid per common share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dividend payout ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

43

$0.66
0.34% 0.28% 0.21%

$0.39

$0.57

For quarterly detail of dividends declared during 2007 and 2006 see “Item 5. Market for Registrant’s

Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities” of this report.

Applicable federal, Washington state and Oregon regulations restrict capital distributions, including
dividends, by the Company’s banking subsidiaries. Such restrictions are tied to the institution’s capital levels
after giving effect to distributions. Our ability to pay cash dividends is substantially dependent upon receipt of
dividends from our banking subsidiaries.

Reference “Item 6. Selected Financial Data” of this report for our return on average assets, return on average

equity and average equity to average assets ratios for all reported periods.

44

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest Rate Sensitivity

We are exposed to interest rate risk, which is the risk that changes in prevailing interest rates will adversely
affect assets, liabilities, capital, income and expenses at different times or in different amounts. Generally, there
are four sources of interest rate risk as described below:

Repricing risk—Repricing risk is the risk of adverse consequences from a change in interest rates that

arises because of differences in the timing of when those interest rate changes affect an institution’s assets
and liabilities.

Basis risk—Basis risk is the risk of adverse consequence resulting from unequal changes in the spread

between two or more rates for different instruments with the same maturity.

Yield curve risk—Yield curve risk is the risk of adverse consequence resulting from unequal changes

in the spread between two or more rates for different maturities for the same instrument.

Option risk—In banking, option risks are known as borrower options to prepay loans and depositor
options to make deposits, withdrawals, and early redemptions. Option risk arises whenever bank products
give customers the right, but not the obligation, to alter the quantity or the timing of cash flows.

We maintain an asset/liability management policy that provides guidelines for controlling exposure to
interest rate risk. The guidelines direct management to assess the impact of changes in interest rates upon both
earnings and capital. The guidelines further provide that in the event of an increase in interest rate risk beyond
pre-established limits, management will consider steps to reduce interest rate risk to acceptable levels.

The analysis of an institution’s interest rate gap (the difference between the repricing of interest-earning

assets and interest-bearing liabilities during a given period of time) is one standard tool for the measurement of
the exposure to interest rate risk. We believe that because interest rate gap analysis does not address all factors
that can affect earnings performance, it should be used in conjunction with other methods of evaluating interest
rate risk.

The table on the following page sets forth the estimated maturity or repricing, and the resulting interest rate
gap of our interest-earning assets and interest-bearing liabilities at December 31, 2007. The amounts in the table
are derived from our internal data and are based upon regulatory reporting formats. Therefore, they may not be
consistent with financial information appearing elsewhere herein that has been prepared in accordance with
accounting principles generally accepted in the United States. The amounts could be significantly affected by
external factors such as changes in prepayment assumptions, early withdrawal of deposits and competition. For
example, although certain assets and liabilities may have similar maturities or periods to repricing, they may
react in different degrees to changes in market interest rates. Also, the interest rates on certain types of assets and
liabilities may fluctuate in advance of changes in market interest rates, while other types may lag changes in
market interest rates.

45

Additionally, certain assets, such as adjustable-rate mortgages, have features that restrict changes in the
interest rates of such assets both on a short-term basis and over the lives of such assets. Further, in the event of a
change in market interest rates, prepayment and early withdrawal levels could deviate significantly from those
assumed in calculating the tables. Finally, the ability of many borrowers to service their adjustable-rate debt may
decrease in the event of a substantial increase in market interest rates.

December 31, 2007

Interest-Earning Assets

Estimated Maturity or Repricing

0-3
months

4-12
months

Over 1 year
through
5 years

Due after
5 years

Total

Interest-earning deposits . . . . . . . . . . . . . . .
Loans, net of deferred fees . . . . . . . . . . . . .
Loans held for sale . . . . . . . . . . . . . . . . . . .
Investments . . . . . . . . . . . . . . . . . . . . . . . . .

$

11,240
1,127,564
4,482
25,418

$

— $ — $

— $

296,697

—
52,966

694,286

—
226,013

164,181

—
268,576

11,240
2,282,728
4,482
572,973

Total interest-earning assets . . . . . . . .

$1,168,704

$ 349,663

$920,299

$ 432,757

2,871,423

Allowance for loan and lease losses . . . . . . . . . .
Cash and due from banks . . . . . . . . . . . . . . . . . .
Premises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Noninterest-earning assets . . . . . . . . . . . . . . . . .

Total assets . . . . . . . . . . . . . . . . . . . . . . . . .

Interest-Bearing Liabilities

Interest bearing non-maturity deposits . . . .
Time deposits . . . . . . . . . . . . . . . . . . . . . . .
Borrowings . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term subordinated debt . . . . . . . . . . .

$ 609,503
382,256
260,731
25,519

$

— $ — $ 593,919
—
—
—

81,737
1,000
—

362,409
1,000
—

(26,599)
82,735
56,122
195,032

307,290

$3,178,713

$1,203,422
826,402
262,731
25,519

Total interest-bearing liabilities . . . . .

$1,278,009

$ 363,409

$ 82,737

$ 593,919

2,318,074

Other liabilities . . . . . . . . . . . . . . . . . . . . . . . . . .

Total liabilities . . . . . . . . . . . . . . . . . . . . . .
Shareholders’ equity . . . . . . . . . . . . . . . . . . . . . .

Total liabilities and shareholders’

equity . . . . . . . . . . . . . . . . . . . . . . .

Interest-bearing liabilities as a percent of total

interest-earning assets . . . . . . . . . . . . . . . . . . .
Rate sensitivity gap . . . . . . . . . . . . . . . . . . . . . .
Cumulative rate sensitivity gap . . . . . . . . . . . . .
Rate sensitivity gap as a percentage of interest-

518,908

2,836,982
341,731

$3,178,713

44.51%

12.66%

2.88%

20.68%

$ (109,305) $ (13,746) $837,562
$ (109,305) $(123,051) $714,511

$(161,162) $ 553,349
$ 553,349

earning assets . . . . . . . . . . . . . . . . . . . . . . . . .

(3.81)%

(0.48)% 29.17%

(5.61)%

Cumulative rate sensitivity gap as a percentage

of interest-earning assets . . . . . . . . . . . . . . . .

(3.81)%

(4.29)% 24.88%

19.27%

Interest Rate Sensitivity on Net Interest Income

A number of measures are used to monitor and manage interest rate risk, including income simulations and

interest sensitivity (gap) analyses. An income simulation model is the primary tool used to assess the direction
and magnitude of changes in net interest income resulting from changes in interest rates. Key assumptions in the
model include prepayment speeds on mortgage-related assets, cash flows and maturities of other investment
securities, loan and deposit volumes and pricing. These assumptions are inherently uncertain and, as a result, the

46

model cannot precisely estimate net interest income or precisely predict the impact of higher or lower interest
rates on net interest income. Actual results will differ from simulated results due to timing, magnitude and
frequency of interest rate changes and changes in market conditions and management strategies, among other
factors.

Based on the results of the simulation model as of December 31, 2007, we would expect an increase in net

interest income of $763,000 and $470,000 if interest rates gradually increase or decrease, respectively, from
current rates by 200 basis points over a twelve-month period. The simulation analysis assumes rates on core
deposits lag changes in loan rates by 3 months.

Impact of Inflation and Changing Prices

The impact of inflation on our operations is increased operating costs. Unlike most industrial companies,
virtually all the assets and liabilities of a financial institution are monetary in nature. As a result, interest rates
generally have a more significant impact on a financial institution’s performance than the effect of general levels
of inflation. Although interest rates do not necessarily move in the same direction or to the same extent as the
prices of goods and services, increases in inflation generally have resulted in increased interest rates.

47

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of Columbia Banking System, Inc.
Tacoma, Washington

We have audited the accompanying consolidated balance sheets of Columbia Banking System, Inc. and its

subsidiaries (the “Company”) as of December 31, 2007 and 2006, and the related consolidated statements of
income, changes in shareholders’ equity, and cash flows for each of the three years in the period ended
December 31, 2007. These financial statements are the responsibility of the Company’s management. Our
responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight
Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance
about whether the financial statements are free of material misstatement. An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by management, as well as evaluating
the overall financial statement presentation. We believe that our audits provide a reasonable basis for our
opinion.

In our opinion, such financial statements present fairly, in all material respects, the financial position of
Columbia Banking Systems, Inc. and its subsidiaries as of December 31, 2007 and 2006, and the results of its
operations and its cash flows for each of the three years in the period ended December 31, 2007, in conformity
with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board

(United States), the Company’s internal control over financial reporting as of December 31, 2007, based on the
criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring
Organizations of the Treadway Commission and our report dated March 5, 2008 expressed an unqualified
opinion on the Company’s internal control over financial reporting.

Seattle, Washington
March 5, 2008

48

COLUMBIA BANKING SYSTEM, INC.

CONSOLIDATED STATEMENTS OF INCOME

Years ended December 31,

2007

2006

2005

(in thousands except per share)

Interest Income
Loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taxable securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax-exempt securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Federal funds sold and deposits with banks . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$156,253
18,614
7,923
1,427

$123,998
20,018
7,042
617

$ 99,535
18,135
4,452
85

Total interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

184,217

151,675

122,207

Interest Expense
Deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Federal Home Loan Bank advances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total interest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

59,930
11,065
2,177
2,225

75,397

Net Interest Income
Provision for loan and lease losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

108,820
3,605

Net interest income after provision for loan and lease losses . . . . . . . . . .

105,215

Noninterest Income
Service charges and other fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Merchant services fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain on sale of investment securities, net
Bank owned life insurance (“BOLI”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total noninterest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Noninterest Expense
Compensation and employee benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Occupancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Merchant processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Advertising and promotion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Legal and professional services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taxes, licenses and fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net (gain) cost of other real estate owned . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total noninterest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision for income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13,498
8,373
—
1,886
3,991

27,748

46,703
12,322
3,470
2,391
2,564
4,912
2,882
5
13,580

88,829

44,134
11,753

40,838
10,944
1,992
138

53,912

97,763
2,065

95,698

11,651
8,314
36
1,687
2,984

24,672

38,769
10,760
3,361
2,582
2,314
2,099
2,499
(11)
13,761

76,134

44,236
12,133

25,983
3,515
1,583
214

31,295

90,912
1,520

89,392

11,310
8,480
6
1,577
3,413

24,786

37,285
10,107
3,258
1,978
2,904
3,503
2,018
(8)
11,810

72,855

41,323
11,692

Net Income

Net Income Per Common Share:

$ 32,381

$ 32,103

$ 29,631

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dividends paid per common share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Average number of common shares outstanding . . . . . . . . . . . . . . . . . . . . . . . .
Average number of diluted common shares outstanding . . . . . . . . . . . . . . . . . .

$
$
$

1.93
1.91
0.66
16,802
16,972

$
$
$

2.01
1.99
0.57
15,946
16,148

$
$
$

1.89
1.87
0.39
15,708
15,885

See accompanying notes to the Consolidated Financial Statements.

49

COLUMBIA BANKING SYSTEM, INC.

CONSOLIDATED BALANCE SHEETS

ASSETS
Cash and due from banks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest-earning deposits with banks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Federal funds sold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Securities available for sale at fair value (amortized cost of $558,685 and $598,703,

respectively)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securities held to maturity (fair value of $0 and $1,871, respectively) . . . . . . . . . . . . .
Federal Home Loan Bank stock at cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loans held for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loans, net of deferred loan fees of ($3,931) and ($2,940), respectively . . . . . . . . . . . .
Less: allowance for loan and lease losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Premises and equipment, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other real estate owned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Goodwill
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total Assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Loans, net

LIABILITIES AND SHAREHOLDERS’ EQUITY

Deposits:
Noninterest-bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest-bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Short–term borrowings:
Federal Home Loan Bank advances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securities sold under agreements to repurchase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total short-term borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term subordinated debt
Other liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Commitments and contingent liabilities
Shareholders’ equity:

Preferred stock (no par value)

December 31,

2007

2006

(in thousands)

$

82,735
11,240
—
93,975

$

76,365
13,979
14,000
104,344

561,366
—
11,607
4,482
2,282,728
26,599
2,256,129
14,622
56,122
181
96,011
84,218
$3,178,713

592,858
1,822
10,453
933
1,708,962
20,182
1,688,780
12,549
44,635
—
29,723
67,034
$2,553,131

$ 468,237
2,029,824
2,498,061

$ 432,293
1,591,058
2,023,351

257,670
—
5,061
262,731
25,519
50,671
2,836,982

205,800
20,000
198
225,998
22,378
29,057
2,300,784

Authorized, 2 million shares; none outstanding . . . . . . . . . . . . . . . . . . . . . . .

—

—

Common stock (no par value)

Accumulated other comprehensive income (loss)

Authorized shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Issued and outstanding . . . . . . . . . . . . . . . . . . . . . . . . . . .
Retained earnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
Total shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . .
Total Liabilities and Shareholders’ Equity . . . . . . . . . . . .

December 31,

2007

2006

63,034
17,953

63,034
16,060

226,550
110,169
5,012
341,731
$3,178,713

166,763
89,037
(3,453)
252,347
$2,553,131

See accompanying notes to Consolidated Financial Statements.

50

COLUMBIA BANKING SYSTEM, INC.

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

Balance at January 1, 2005 . . . . . . . . . . . . . . . . . . .
Comprehensive income:

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other comprehensive loss, net of tax:
Net unrealized loss from securities, net of

reclassification adjustments . . . . . . . . . . . . . .

Total comprehensive income . . . . . . . . . . .

Issuance of stock under stock option and other

plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Issuance of stock under restricted stock plan . . . . . .
Amortization of deferred compensation restricted

stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax benefit associated with stock options . . . . . . . . .
Cash dividends paid on common stock . . . . . . . . . . .

Balance at December 31, 2005 . . . . . . . . . . . . . . . .
Comprehensive income:

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other comprehensive income (loss), net of tax:
Net unrealized loss from securities, net of

reclassification adjustments . . . . . . . . . . . . . .

Net unrealized gain from cash flow hedging

instruments . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total comprehensive income . . . . . . . . . . .

Transition adjustment related to adoption of SFAS

123(R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Issuance of stock under stock option and other

plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stock award compensation expense . . . . . . . . . . . . .
Stock option compensation expense . . . . . . . . . . . . .
Tax benefit associated with stock options . . . . . . . . .
Cash dividends paid on common stock . . . . . . . . . . .

Balance at December 31, 2006 . . . . . . . . . . . . . . . .
Comprehensive income:

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other comprehensive income, net of tax:
Net unrealized gain from securities, net of

reclassification adjustments . . . . . . . . . . . . . .

Net unrealized gain from cash flow hedging

instruments . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total comprehensive income . . . . . . . . . . .
Purchase and retirement of common stock . . . . . . . .
Acquisitions:

Shares issued to the shareholders of Mountain

Bank Holding Company . . . . . . . . . . . . . . . .

Converted Mountain Bank Holding Company

stock options . . . . . . . . . . . . . . . . . . . . . . . . .

Shares issued to the shareholders of Town

Center Bancorp . . . . . . . . . . . . . . . . . . . . . . .

Converted Town Center Bancorp stock

options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Issuance of stock under stock option and other

plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stock award compensation expense . . . . . . . . . . . . .
Stock option compensation expense . . . . . . . . . . . . .
Tax benefit associated with exercise of stock

options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cash dividends paid on common stock . . . . . . . . . . .

Common stock

Number of
Shares

Amount

Retained
Earnings

Deferred
Compensation

15,594

$159,693 $ 42,552

(in thousands)
$ —

—

—

221
16

—
—
—

—

—

2,208
389

—
775
—

29,631

—

—
—

—
—
(6,132)

15,831

163,065

66,051

—

—

—

—

148
81
—
—
—

—

—

—

(92)

2,090
567
226
907
—

32,103

—

—

—

—
—
—
—
(9,117)

16,060

166,763

89,037

32,381

—

—

—

—

—

—

—

—
—
—

—

—

—

—

—

—

(65)

(2,121)

30,327

1,325

23,869

1,598

2,836
813
161

993

—

705

—

193
67
—

—
—

979
— (11,249)

—

—

—

—
(389)

297
—
—

(92)

—

—

—

92

—
—
—
—
—

—

—

—

—

—

—

—

—

—

—
—
—

—
—

Accumulated
Other
Comprehensive
Income (Loss)

Total
Shareholders’
Equity

$

909

$203,154

—

29,631

(3,691)

—
—

—
—
—

(3,691)

25,940

2,208
—

297
775
(6,132)

(2,782)

226,242

—

32,103

(1,032)

361

—

—
—
—
—
—

(1,032)

361

31,432

—

2,090
567
226
907
(9,117)

(3,453)

252,347

—

32,381

5,540

2,925

—

—

—

—

—

—
—
—

—
—

5,540

2,925

40,846
(2,121)

30,327

1,325

23,869

1,598

2,836
813
161

979
(11,249)

Balance at December 31, 2007 . . . . . . . . . . . . . . . .

17,953

$226,550 $110,169

$ —

$ 5,012

$341,731

See accompanying notes to Consolidated Financial Statements.

51

COLUMBIA BANKING SYSTEM, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

Cash Flows From Operating Activities
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Adjustments to reconcile net income to net cash provided by operating activities:

Provision for loan and lease losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred income tax benefit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax benefit associated with stock options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Excess tax benefit from stock-based compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stock-based compensation expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain on sale of investment securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain on sale of other real estate owned and other personal property owned . . . . . . . . . .
Depreciation, amortization & accretion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net realized gain on sale of assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stock dividends from Federal Home Loan Bank stock . . . . . . . . . . . . . . . . . . . . . . . . . .
Net change in:

Loans held for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net cash provided by operating activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cash Flows From Investing Activities
Purchase of securities available for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from sale of securities available for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from principal repayments and maturities of securities available for sale . . . . . . . .
Proceeds from maturities of securities held to maturity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from sale of Federal Home Loan Bank and Federal Reserve Bank stock . . . . . . . . .
Purchase of Federal Home Loan Bank stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loans originated and acquired, net of principal collected . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Purchases of premises and equipment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from disposal of premises and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquisition of Mt. Rainier and Town Center, net of cash acquired . . . . . . . . . . . . . . . . . . . . .
Proceeds from sale of other real estate owned and other personal property owned . . . . . . . . .

Years ended December 31,

2007

2006

2005

(in thousands)

32,381 $

32,103 $

29,631

3,605
(2,607)
—
(71)
974
—
—
6,685
(216)
—

(3,084)
(404)
6,014
2,945
5,285

51,507

(3,742)
29,867
48,646
578
310
—

(288,099)
(5,591)
216
(32,356)
—

2,065
(1,988)
—
(117)
793
(36)
(11)
7,713
(306)
—

917
(878)
744
(4,766)
2,918

39,151

1,520
(1,244)
775
—
297
(6)
(8)
8,927
(215)
(43)

4,169
(2,089)
624
(1,032)
2,706

44,012

(177,797)
43,099
110,144
703
—
—

(147,040)
(4,455)
126
—

29

(32,969)
19,643
58,144
578
2,917
(2,566)
(204,513)
(4,751)
780
—
1,003

Net cash used in investing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(250,171)

(175,191)

(161,734)

Cash Flows From Financing Activities
Net increase in deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net increase in other borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net decrease in repurchase agreement borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from Federal Home Loan Bank advances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repayment of Federal Home Loan Bank advances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cash dividends paid on common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from issuance of common stock, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repurchase of common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Excess tax benefit from stock-based compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net cash provided by financing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Increase (decrease) in cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . .
Cash and cash equivalents at beginning of year . . . . . . . . . . . . . . . . . . . . . . . .

170,025
4,863
(20,000)
2,992,548
(2,948,678)
(11,249)
2,836
(2,121)
71

—

188,295

(10,369)
104,344

17,862
17,626
—
2,873,249
(2,761,849)
(9,117)
2,090
—
117
—

139,978

3,938
100,406

142,607
—
—
1,163,630
(1,137,930)
(6,132)
2,208
—
—
(91)

164,292

46,570
53,836

Cash and cash equivalents at end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

93,975 $

104,344 $

100,406

Supplemental disclosures of cash flow information:
Cash paid for interest
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Cash paid for income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Investment in affordable housing partnerships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Loans foreclosed and transferred to other real estate owned or other personal property

owned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Transfer of securities from held to maturity to available for sale . . . . . . . . . . . . . . . . . . . . . . . $
Share-based consideration issued for acquisitions (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . $

69,383 $
13,930 $
— $

— $
1,258 $
57,119 $

53,168 $
14,575 $
— $

30,671
11,111
6,900

— $
— $
— $

333
—
—

See accompanying notes to Consolidated Financial Statements.

52

COLUMBIA BANKING SYSTEM, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
For the Years Ended December 31, 2007, 2006 and 2005

Columbia Banking System, Inc. (the “Company”), through its wholly owned banking subsidiaries, provides

a full range of banking services to small and medium-sized businesses, professionals and other individuals
generally based in western Washington state and the northern coastal and Portland metropolitan areas of Oregon.
At December 31, 2007, the Company conducted its banking services in 55 office locations with the majority of
its loans, loan commitments and core deposits geographically concentrated in the Puget Sound region of
Washington state.

In Washington state and the Portland metropolitan area of Oregon, the Company conducts a full-service

commercial banking business through its wholly owned banking subsidiary, Columbia State Bank (“Columbia
Bank”). In the northern coastal area of Oregon, the Company conducts a full-service commercial banking
business through its wholly owned banking subsidiary, Bank of Astoria (“Astoria”).

On July 23, 2007, the Company acquired all of the outstanding common stock of Mountain Bank Holding

Company (“Mt. Rainier”), the parent company of Mt. Rainier National Bank, Enumclaw, Washington. Mt.
Rainier was merged into the Company and Mt. Rainier National Bank was merged into Columbia Bank doing
business as Mt. Rainier Bank. The results of Mt. Rainier Bank’s operations are included in those of Columbia
Bank beginning July 23, 2007. On July 23, 2007, the Company also acquired all of the outstanding common
stock of Town Center Bancorp (“Town Center”), the parent company of Town Center Bank, Portland, Oregon.
Town Center was merged into the Company and Town Center Bank was merged into Columbia Bank. The
results of Town Center Bank’s operations are included in those of Columbia Bank beginning July 23, 2007. Each
acquisition was accounted for as a purchase; unaudited Pro Forma Condensed Consolidated Results of
Operations as if the acquisitions had taken place on January 1, 2006 and additional purchase information are
presented in Note 2 of the consolidated financial statements.

1.

Summary of Significant Accounting Policies

Principles of Consolidation

The Consolidated Financial Statements of the Company include the accounts of the Company and its wholly
owned banking subsidiaries, Columbia Bank and Astoria. All significant intercompany balances and transactions
have been eliminated in consolidation.

Business Combinations

Statement of Financial Accounting Standards No. 141, Business Combinations (“SFAS 141”), requires that

all business combinations initiated after June 30, 2001 be accounted for using the purchase method. The purchase
method of accounting requires that the cost of an acquired entity be allocated to the assets acquired and liabilities
assumed based on their estimated fair values at the date of acquisition. The difference between the fair values and
the purchase price is recorded to Goodwill. Also, under SFAS 141, identified intangible assets acquired in a
purchase business combination must be separately valued and recognized on the balance sheet if they meet
certain requirements. See Note 2 for further discussion.

Securities

Debt securities that management has the positive intent and ability to hold to maturity are classified as “held

to maturity” and recorded at amortized cost. Securities not classified as held to maturity, including equity
securities with readily determinable fair values, are classified as “available for sale” and recorded at fair value,
with unrealized gains and losses excluded from earnings and reported net of tax as a component of “other
comprehensive income (loss)” in the Consolidated Statements of Changes in Shareholders’ Equity.

53

Purchase premiums and discounts are recognized in interest income using the interest method over the terms

of the securities. Declines in the fair value of held to maturity and available for sale securities below their cost
that are deemed to be other-than-temporary are reflected in earnings as realized losses. Management evaluates
securities for other-than-temporary impairment at least on a quarterly basis, and more frequently when economic
or market concerns warrant such evaluation. In estimating other-than-temporary impairment losses, management
considers (1) the reasons for the decline, (2) the length of time and the extent to which the fair value has been
less than cost and not as a result of changes in interest rates, (3) the financial condition and near-term prospects
of the issuer, and (4) the intent and ability of the Company to retain its investment in the issuer for a period of
time sufficient to allow for any anticipated recovery in fair value. Gains and losses on the sale of securities are
determined using the specific identification method.

Loans Held for Sale

Loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or

fair value, as determined by aggregate outstanding commitments from investors or current investor yield
requirements. The amount by which cost exceeds market for loans held for sale is accounted for as a valuation
allowance, and changes in the allowance are included in the determination of net income in the period in which
the change occurs. Gains and losses on sales of mortgage loans are recognized based on the difference between
the selling price and the carrying value of the related mortgage loans sold; the servicing rights on such loans are
not retained.

Loans

Loans are stated at their outstanding unpaid principal balance adjusted for charge-offs, the allowance for
loan losses, and any deferred loan fees or costs on originated loans. Interest income is accrued on the unpaid
principal balance. Loan origination fees and direct loan origination costs are deferred and the net amount is
recognized as an adjustment to yield over the contractual life of the related loans. Fees related to lending
activities other than the origination or purchase of loans are recognized as noninterest income during the period
the related services are performed.

The policy of the Company is to discontinue the accrual of interest on all loans past due 90 days or more and

place them on nonaccrual status. In all cases, loans are placed on non-accrual or charged-off at an earlier date if
collection of principal or interest is considered doubtful. All interest accrued but not collected for loans that are
placed on non-accrual or charged off is reversed against interest income. The interest on these loans is accounted
for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual
status when all the principal and interest amounts contractually due are brought current and future payments are
reasonably assured.

Allowance for Loan and Lease Losses

The allowance for loan and lease losses is established as losses are estimated to have occurred through a
provision for loan and lease losses charged to earnings. Loan and lease losses are charged against the allowance
when management believes the collectibility of a loan balance is unlikely. Subsequent recoveries, if any, are
credited to the allowance.

The allowance for loan and lease losses is evaluated on a regular basis by management and is based upon
management’s periodic review of the collectibility of the loans in light of historical experience, the nature and
volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of
any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it
requires estimates that are susceptible to significant revision as more information becomes available.

The allowance consists of general, specific, and unallocated components. The general component covers

non-classified loans and is based on historical loss experience adjusted for qualitative factors. The specific
component relates to loans that are classified as doubtful, substandard or special mention. For such loans that are

54

also classified as impaired, an allowance is established when the discounted cash flows (or collateral value or
observable market price) of the impaired loan is lower than the carrying value of that loan. The unallocated
allowance provides for other credit losses inherent in the Company’s loan portfolio that may not have been
contemplated in the general and specific components of the allowance. This unallocated amount generally
comprises less than 5% of the allowance. The unallocated amount is reviewed periodically based on trends in
credit losses, the results of credit reviews and overall economic trends.

A loan is considered impaired when, based on current information and events, it is probable that the
Company will be unable to collect the scheduled payments of principal or interest when due according to the
contractual terms of the loan agreement. Factors considered by management in determining impairment include
payment status, collateral value, and the probability of collecting scheduled principal and interest payments when
due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as
impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case
basis, taking into consideration all of the circumstances surrounding the loan and the borrowers, including the
length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the
shortfall in relation to the principal and interest owed. Impairment is measured on a loan by loan basis for
commercial and construction loans by either the present value of expected future cash flows discounted at the
loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is
collateral dependent.

Large groups of smaller balance homogeneous loans are collectively evaluated for impairment.

Accordingly, the Company does not separately identify individual consumer and residential loans for impairment
disclosures, unless such loans are the subject of a restructuring agreement.

Allowance for Unfunded Loan Commitments and Letters of Credit

The allowance for unfunded loan commitments is maintained at a level believed by management to be
sufficient to absorb estimated probable losses related to these unfunded credit facilities. The determination of the
adequacy of the allowance is based on periodic evaluations of the unfunded credit facilities including an
assessment of the probability of commitment usage, credit risk factors for loans outstanding to these same
customers, and the terms and expiration dates of the unfunded credit facilities. The allowance for unfunded loan
commitments is included in other liabilities on the Consolidated Balance Sheets, with changes to the balance
charged against noninterest expense.

Derivatives and Hedging Activities

Statement of Financial Accounting Standards No. 133 Accounting for Derivative Instruments and Hedging

Activities (“SFAS 133”), as amended and interpreted, establishes accounting and reporting standards for
derivative instruments. Generally, derivatives are financial instruments with little or no initial net investment in
comparison to their notional amount and whose value is based upon an underlying asset, index, reference rate or
other variable. As required by SFAS 133, all derivatives are reported at their fair value on the Consolidated
Balance Sheets

The Company enters into derivative contracts to add stability to interest income and to manage its exposure
to changes in interest rates. On the date the Company enters into a derivative contract, the derivative instrument
is designated as: (1) a hedge of the fair value of a recognized asset or liability or of an unrecognized firm
commitment (a “fair value” hedge); (2) a hedge of the variability in expected future cash flows associated with an
existing recognized asset or liability or a probable forecasted transaction (a “cash flow” hedge); or (3) held for
other economic purposes (an “economic” hedge) not formally designated as part of qualifying hedging
relationships under SFAS 133.

In a fair value hedge, changes in the fair value of the hedging derivative are recognized in earnings and offset
by recognizing changes in the fair value of the hedged item attributable to the risk being hedged. To the extent that
the hedge is ineffective, the changes in fair value will not offset and the difference is reflected in earnings.

55

In a cash flow hedge, the effective portion of the change in the fair value of the hedging derivative is
recorded in accumulated other comprehensive income and is subsequently reclassified into earnings during the
same period in which the hedged item affects earnings. The change in fair value of any ineffective portion of the
hedging derivative is recognized immediately in earnings.

Derivatives used for other economic purposes are used as economic hedges in which the Company has not
attempted to achieve the highly effective hedge accounting standard under SFAS 133. The changes in fair value
of these instruments are recognized immediately in earnings.

The Company formally documents the relationship between the hedging instruments and hedged items, as

well as its risk management objective and strategy before initiating a hedge. To qualify for hedge accounting, the
derivatives and related hedged items must be designated as a hedge. For hedging relationships in which
effectiveness is measured, the correlations between the hedging instruments and hedged items are assessed at
inception of the hedge and on an ongoing basis, which includes determining whether the hedge relationship is
expected to be highly effective in offsetting changes in fair value or cash flows of hedged items

Premises and Equipment

Land, buildings, leasehold improvements and equipment are carried at amortized cost. Buildings and

equipment are depreciated over their estimated useful lives using the straight-line method. Leasehold
improvements are amortized over the shorter of their useful lives or lease terms. Gains or losses on dispositions
are reflected in operations. Expenditures for improvements and major renewals are capitalized, and ordinary
maintenance, repairs and small purchases are charged to operations as incurred.

Other Real Estate Owned and Other Personal Property Owned

All other real estate and other personal property acquired in satisfaction of a loan are considered held for
disposal and reported as “other real estate owned” and “other personal property owned.” Other personal property
owned is included in “other assets” in the Consolidated Balance Sheets. Other real estate owned and other
personal property owned is carried at the lower of cost or fair value less estimated cost of disposal.

Federal Home Loan Bank Stock

The Company’s investment in Federal Home Loan Bank (“FHLB”) stock is carried at par value, which
reasonably approximates its fair value. The Company is required to maintain a minimum level of investment in
FHLB stock based on specific percentages of its outstanding mortgages, total assets or FHLB advances. Stock
redemptions are at the discretion of the FHLB.

Goodwill and Other Intangibles

Net assets of companies acquired in purchase transactions are recorded at fair value at the date of

acquisition. Identified intangibles are amortized on an accelerated basis over the period benefited. Goodwill is
not amortized but is reviewed for potential impairment during the third quarter on an annual basis, or if events or
circumstances indicate a potential impairment, at the reporting unit level. The impairment test is performed in
two phases. The first step of the goodwill impairment test compares the fair value of the reporting unit with its
carrying amount, including goodwill. If the fair value of the reporting unit exceeds its carrying amount, goodwill
of the reporting unit is considered not impaired; however, if the carrying amount of the reporting unit exceeds its
fair value, an additional procedure must be performed. That additional procedure compares the implied fair value
of the reporting unit’s goodwill (as defined in SFAS No. 142, “Goodwill and Other Intangible Assets”) with the
carrying amount of that goodwill. An impairment loss is recorded to the extent that the carrying amount of
goodwill exceeds its implied fair value.

56

Intangible assets are evaluated for impairment if events and circumstances indicate a possible impairment.

Such evaluation of other intangible assets is based on undiscounted cash flow projections. At December 31,
2007, intangible assets included on the Consolidated Balance Sheets consist of a core deposit intangible that is
amortized using an accelerated method with an original estimated life of approximately 10 years. See Note 2 for
further discussion.

Securities Sold Under Agreements to Repurchase

The Company pledges certain financial instruments it owns to collateralize the sales of securities that are

subject to an obligation to repurchase the same or similar securities (“repurchase agreements”). Under these
arrangements, the Company transfers the assets but still retains effective control through an agreement that both
entitles and obligates the Company to repurchase the assets. As a result, repurchase agreements are accounted for
as collateralized financing arrangements and not as a sale and subsequent repurchase of securities. The obligation
to repurchase the securities is reflected as a liability in the Consolidated Balance Sheets while the securities
underlying the agreements remain in the respective asset accounts.

Share-Based Payment

The Company maintains a share-based compensation plan (the “Plan”) as described in Note 13 that provides

for the granting of share options and shares to eligible employees and directors. Prior to 2006, the Company
applied the intrinsic value method, as outlined in Accounting Principles Board Opinion No. 25, Accounting for
Stock Issued to Employees (“APB 25”) and related interpretations, as permitted by SFAS No. 123, Accounting for
Stock Based Compensation (“SFAS 123”) in accounting for share options. Under the intrinsic value method,
compensation expense is recognized only to the extent an option’s exercise price is less than the market value of
the underlying stock at the date of grant. Accordingly, prior to 2006, no compensation expense was recognized in
the accompanying consolidated statements of income on share options granted to employees, since all options
granted under the Plan had an exercise price equal to the market value of the underlying common stock on the
date of grant.

Effective January 1, 2006, the Company adopted Statement of Financial Accounting Standards No. 123(R),
Share-Based Payment (“SFAS 123R”). This statement replaces SFAS 123 and supersedes APB 25. SFAS 123R
requires that all share-based compensation be recognized as an expense in the financial statement and that such
cost be measured at the fair value of the award on the grant date. This statement was adopted using the modified
prospective method of application, which requires the Company to recognize compensation expense on a
prospective basis. Therefore, prior period financial statements have not been restated. Under this method, in
addition to reflecting compensation expense for new share-based awards, expense is also recognized to reflect the
remaining service period of awards that had been included in pro forma disclosures in prior periods.

Income Tax

The provision for income tax is based on income and expense reported for financial statement purposes,

using the “asset and liability method” for accounting for deferred income tax. Deferred tax assets and liabilities
are recognized for the future tax consequences attributable to differences between the financial statement
carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities
are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary
differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in
tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is
recorded against any deferred tax assets for which it is more likely than not that the deferred tax asset will not be
realized.

Earnings Per Share

Earnings per share (“EPS”) are computed using the weighted average number of common and diluted
common shares outstanding during the period. Basic EPS is computed by dividing income available to common
stockholders by the weighted average number of common shares outstanding for the period. Diluted EPS reflects

57

the potential dilution that could occur if securities or other contracts to issue common stock were exercised or
converted into common stock. The only reconciling items affecting the calculation of earnings per share are the
inclusion of stock options and nonvested restricted stock awards increasing the shares outstanding in diluted
earnings per share by 170,000, 202,000, and 177,000 in 2007, 2006, and 2005, respectively.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the

United States requires management to make estimates and assumptions that affect the reported amounts of assets
and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, and the
reported amounts of revenues and expenses during the reporting period. Actual results could differ from those
estimates. Significant estimates are used in determining the level of the allowance for loan and lease losses.

Statements of Cash Flows

For purposes of the Consolidated Statements of Cash Flows, cash and cash equivalents include cash and due

from banks, interest-earning deposits with banks and federal funds sold with maturities of 90 days or less.

Reclassifications

Certain amounts in the 2006 and 2005 Consolidated Financial Statements have been reclassified to conform

to the 2007 presentation. These reclassifications had no effect on net income.

Accounting Pronouncements Recently Issued or Adopted

In December 2007, the FASB issued Statement of Financial Accounting Standards No. 141R, Business

Combinations (“SFAS 141R”). This statement establishes principles and requirements for how an acquirer
recognizes and measures in its financial statements the identifiable assets acquired, the liabilities assumed, and
any noncontrolling interest in the acquiree; recognizes and measures the goodwill acquired in the business
combination or a gain from a bargain purchase; determines what information to disclose to enable users of the
financial statements to evaluate the nature and financial effects of the business combination. This Statement
applies prospectively to business combinations for which the acquisition date is on or after the beginning of the
first annual reporting period beginning on or after December 15, 2008.

In September 2006, the FASB issued Statement of Financial Accounting Standards No. 157, Fair Value
Measurements (“SFAS 157”). This statement defines fair value, establishes a framework for measuring fair value
in generally accepted accounting principles, and expands disclosures about fair value measurements. This
Statement applies whenever assets or liabilities are required or permitted to be measured at fair value under
currently existing standards. No additional fair value measurements are required under this Statement. We
adopted SFAS 157 on January 1, 2008 and there was no material effect on our results of operations.

In September 2006, the Financial Accounting Standards Board ratified the consensus reached by the

Emerging Issues Task Force in Issue No. 06-4, Accounting for Deferred Compensation and Postretirement
Benefit Aspects of Endorsement Split-Dollar Life Insurance Arrangements (“EITF 06-4”). EITF 06-4 provides
recognition guidance regarding liabilities and related compensation costs for endorsement split-dollar life
insurance arrangements that provide a benefit to an employee that extends to postretirement periods. On
January 1, 2008 we recognized the effects of applying the consensus through a change in accounting principle
with a cumulative-effect adjustment to retained earnings of approximately $2.2 million. We do not expect
application of this consensus to have a material effect on our results of operations.

In June 2006, the FASB issued FASB Interpretation No. 48, Accounting for Uncertainties in Income Taxes,

an Interpretation of FASB Statement No. 109 (“FIN 48”). FIN 48 prescribes a comprehensive model for how a
company should recognize, measure, present and disclose in its financial statements uncertain tax positions that it

58

has taken or expects to take on a tax return. We adopted FIN 48 on January 1, 2007. As of December 31, 2007
and January 1, 2007, we had no unrecognized tax benefits. Our policy is to recognize interest and penalties on
unrecognized tax benefits in “Provision for income taxes” in the Consolidated Statements of Income. There were
no amounts related to interest and penalties recognized for the year ended December 31, 2007. The tax years
subject to examination by federal and state taxing authorities are the years ending December 31, 2006, 2005,
2004 and 2003.

2. Acquisitions of Mountain Bank Holding Company and Town Center Bancorp

On July 23, 2007, the Company acquired all of the outstanding common stock of Mountain Bank Holding

Company (“Mt. Rainier”), the parent company of Mt. Rainier National Bank, Enumclaw, Washington. Mt.
Rainier was merged into Columbia and Mt. Rainier National Bank was merged into Columbia State Bank doing
business as Mt. Rainier Bank. The results of Mt. Rainier Bank’s operations are included in those of Columbia
State Bank starting in the quarter ended September 30, 2007. The acquisition of Mt. Rainier was consistent with
our expansion strategy and with its 7 branches in King and Pierce counties, expanded Columbia’s geographic
footprint into adjacent markets.

The aggregate purchase price was $58.4 million and included $26.4 million of cash, 993,000 common
shares valued at $30.3 million, options to purchase 97,049 shares of common stock valued at $1.3 million and
$352,000 of direct merger costs. The value of the common shares issued was determined based on the $30.53
average closing market price of the Company’s common stock for the two trading days before and after the
measurement date of May 2, 2007 when the number of shares to be issued was determined. Outstanding Mt.
Rainier options were converted at a weighted average fair value of $13.66 per option.

The following table summarizes the estimated fair value of the assets acquired and liabilities assumed at the

date of acquisition.

Cash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securities available for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Federal funds sold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loans, net of allowance for loan losses of $1,978 . . . . . . . . . . . . . . . . . . . . . . .
Premises and equipment, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Core deposit intangible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Goodwill

July 23, 2007

(in thousands)
$ 12,451
21,412
3,716
175,533
9,065
5,817
4,244
33,385

Total assets acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

265,623

Deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total liabilities assumed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(202,644)
(4,529)

(207,173)

Net assets acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 58,450

Additional adjustments to the purchase price allocation may occur as certain items, such as income taxes,

are based on estimates at the time of acquisition. The core deposit intangible asset shown in the table above
represents the value ascribed to the long-term deposit relationships acquired. This intangible asset is being
amortized on an accelerated basis over an estimated useful life of ten years. The core deposit intangible asset is
not estimated to have a significant residual value. Goodwill represents the excess of the total purchase price paid
for Mt. Rainier over the fair value of the assets acquired, net of the fair values of the liabilities assumed. None of
the goodwill is deductible for tax purposes. Goodwill is not amortized, but is evaluated for possible impairment

59

at least annually and more frequently if events and circumstances indicate that the asset might be impaired. No
impairment losses were recognized in connection with core deposit intangible or goodwill assets during the
period from acquisition on July 23, 2007 to the end of the current reporting period.

On July 23, 2007, the Company also acquired all of the outstanding common stock of Town Center Bancorp

(“Town Center”), the parent company of Town Center Bank, Portland, Oregon. Town Center was merged into
Columbia and Town Center Bank was merged into Columbia State Bank. The results of Town Center Bank’s
operations are included in those of Columbia State Bank starting in the quarter ended September 30, 2007. The
acquisition of Town Center, with its 5 Oregon locations in the North Clackamas and Southeast Portland area,
expanded Columbia’s geographic footprint into the Portland metropolitan market and was consistent with our
expansion strategy.

The aggregate purchase price was $45.6 million and included $19.5 million in cash, 705,000 common shares
valued at $23.9 million, options to purchase 90,186 shares of common stock valued at $1.6 million and $609,000
of direct merger costs. The value of the common shares issued was determined based on the $33.87 average
closing market price of the Company’s common stock for the two trading days before and after the measurement
date of March 28, 2007 when the number of shares to be issued was determined. Outstanding Town Center
options were converted at a weighted average fair value of $17.71 per option.

The following table summarizes the estimated fair value of the assets acquired and liabilities assumed at the

date of acquisition.

Cash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securities available for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Federal funds sold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loans, net of allowance for loan losses of $1,213 . . . . . . . . . . . . . . . . . . . . . . .
Premises and equipment, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bank-owned life insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Core deposit intangible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Goodwill

July 23, 2007

(in thousands)
2,104
$
13,184
2,000
107,511
1,596
2,312
3,506
581
32,903

Total assets acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

165,697

Deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Advances from Federal Home Loan Bank . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total liabilities assumed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(102,041)
(8,000)
(4,087)
(5,989)

(120,117)

Net assets acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 45,580

Additional adjustments to the purchase price allocation may occur as certain items, such as income taxes,

are based on estimates at the time of acquisition. The core deposit intangible asset shown in the table above
represents the value ascribed to the long-term deposit relationships acquired. This intangible asset is being
amortized on an accelerated basis over an estimated useful life of ten years. The core deposit intangible asset is
not estimated to have a significant residual value. Goodwill represents the excess of the total purchase price paid
for Town Center over the fair value of the assets acquired, net of the fair values of the liabilities assumed. None
of the goodwill is deductible for tax purposes. Goodwill is not amortized, but is evaluated for possible
impairment at least annually and more frequently if events and circumstances indicate that the asset might be
impaired. No impairment losses were recognized in connection with core deposit intangible or goodwill assets
during the period from acquisition on July 23, 2007 to the end of the current reporting period.

60

The following tables present unaudited pro forma consolidated condensed results of operations for the
twelve months ended December 31, 2007 and 2006 prepared as if the acquisitions of Mt. Rainier and Town
Center had occurred on January 1, 2006. Any cost savings realized as a result of the acquisitions are not reflected
in the pro forma condensed statements of income as no assurance can be given with respect to the final amount of
such cost savings. The pro forma results have been prepared for comparison purposes only and are not
necessarily indicative of the results that would have been obtained had the acquisitions actually occurred on
January 1, 2006.

For The Year Ended
December 31, 2007

For The Year Ended
December 31, 2006

(in thousands, except per common share
information)

Net interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision for loan and lease losses . . . . . . . . . . . . . . . . . . . . .
Noninterest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Noninterest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Earnings per common share—basic . . . . . . . . . . . . . . . . . . . .
Earnings per common share—diluted . . . . . . . . . . . . . . . . . .

$118,285
$
3,783
$ 29,075
$ 96,166
$ 34,683
1.95
$
1.94
$

$113,998
$
2,626
$ 27,106
$ 88,564
$ 35,834
2.03
$
2.01
$

3. Cash and Due From Banks

The Company is required to maintain an average reserve balance with the Federal Reserve Bank or maintain
such reserve balance in the form of cash. The average required reserve balance for the years ended December 31,
2007 and 2006 was approximately $1.0 million and $17.6 million, respectively, and was met by holding cash and
maintaining an average balance with the Federal Reserve Bank.

4.

Securities

At December 31, 2007, the Company’s securities portfolio primarily consisted of securities issued by U.S.
Government agencies and government-sponsored enterprises. The Company did not have any other issuances in
its portfolio which exceeded ten percent of shareholders’ equity.

In December 2007, all securities classified as held-to-maturity (a total of 4 securities) were transferred to the

available for sale classification. At December 31, 2007 the amortized cost of those securities was $1.2 million
with a related unrealized gain of $44,000. Management’s decision to transfer the securities was due to the
decreasing dollar amount of securities classified as held-to-maturity securities as a result of maturities and the
desire to increase efficiencies associated with investment portfolio accounting.

The following table summarizes the amortized cost, gross unrealized gains and losses, and the resulting fair

value of securities available for sale:

Securities Available for Sale

December 31, 2007:
U.S. Government-sponsored enterprise . . . . . . . . . . . . . . . . . . . . .
U.S. Government agency and government-sponsored enterprise

mortgage-backed securities and collateralized mortgage
obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
State & municipal securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Amortized
Cost

Gross
Unrealized
Gains

Gross
Unrealized
Losses

Fair Value

(in thousands)

$ 61,137

$ 216

$

(53)

$ 61,300

304,475
190,673
2,400

1,132
3,782
—

(1,865)
(490)
(41)

303,742
193,965
2,359

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$558,685

$5,130

$(2,449)

$561,366

61

December 31, 2006:
U.S. Government-sponsored enterprise . . . . . . . . . . . . . . . . . . . . .
U.S. Government agency and government-sponsored enterprise

mortgage-backed securities and collateralized mortgage
obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
State & municipal securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Amortized
Cost

Gross
Unrealized
Gains

Gross
Unrealized
Losses

Fair Value

(in thousands)

$ 76,922

$ —

$ (1,470) $ 75,452

332,735
186,646
2,400

595
3,829
—

(8,234)
(517)
(48)

325,096
189,958
2,352

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$598,703

$4,424

$(10,269) $592,858

Gross realized losses amounted to $0, $504,000 and $0 for the years ended December 31, 2007, 2006 and

2005, respectively. Gross realized gains amounted to $0, $540,000 and $6,000 for the years ended December 31,
2007, 2006 and 2005, respectively.

The following table summarizes the amortized cost and fair value of securities available for sale by

contractual maturity groups:

December 31, 2007

Amortized
Cost

Fair
Value

(in thousands)

U.S. Government-sponsored enterprise
Due through 1 year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 1 through 5 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 17,731
43,406

$ 17,678
43,622

Total

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 61,137

$ 61,300

U.S. Government agency and government-sponsored enterprise

mortgage-backed securities & collateralized mortgage obligations (1)
Due through 1 year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 1 through 5 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 5 through 10 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 10 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

560
98
131,543
172,274

$

556
97
130,904
172,185

Total

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$304,475

$303,742

State and municipal securities
Due through 1 year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 1 through 5 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 5 through 10 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over 10 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

1,099
10,407
31,134
148,033

$

1,094
10,695
31,484
150,692

Total

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$190,673

$193,965

Other securities
Due through 1 year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
After 10 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

1,400
1,000

2,400

$

$

1,400
959

2,359

(1) The maturities reported for mortgage-backed securities and collateralized mortgage obligations are based on

contractual maturities and principal amortization.

62

At December 31, 2007 and 2006, available for sale and held to maturity securities with a fair value of

$326.6 million and $358.8 million, respectively, were pledged to secure public deposits, Federal Home Loan
Bank borrowings, and for other purposes as required or permitted by law.

The following table summarizes information pertaining to securities with gross unrealized losses at

December 31, 2007, aggregated by investment category and length of time that individual securities have been in
a continuous loss position:

U.S. Government-sponsored enterprise . . . .
U.S. Government agency and government-
sponsored enterprise mortgage-backed
securities & collateralized mortgage
obligations . . . . . . . . . . . . . . . . . . . . . . . .
State and municipal securities . . . . . . . . . . .
Other securities . . . . . . . . . . . . . . . . . . . . . .

Less than 12 Months

12 Months of More

Total

Fair
Value

Unrealized
Losses

Fair
Value

Unrealized
Losses

Fair
Value

Unrealized
Losses

$ —

$ —

$ 17,678

$

(53) $ 17,678

$

(53)

(in thousands)

16,897
19,725
—

(28)
(112)
—

170,932
24,549
959

(1,837)
(378)
(41)

187,829
44,274
959

(1,865)
(490)
(41)

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$36,622

$(140)

$214,118

$(2,309) $250,740

$(2,449)

At December 31, 2007, there were 5 U.S. Government-sponsored enterprise securities in an unrealized loss

position, all of which were in a continuous loss position for 12 months or more. The unrealized losses on U.S.
Government-sponsored enterprise securities were caused by interest rate increases subsequent to the purchase of
the individual securities. The contractual terms of these investments do not permit the issuer to settle the
securities at a price less than par. Because the Company has the ability and intent to hold these investments until
a recovery of market value, which may be maturity, the Company does not consider these investments to be
other-than-temporarily impaired at December 31, 2007.

At December 31, 2007, there were 56 state and municipal government securities in an unrealized loss
position, of which 40 were in a continuous loss position for 12 months or more. The unrealized losses on state
and municipal securities were caused by interest rate increases subsequent to the purchase of the individual
securities. Management monitors published credit ratings of these securities for adverse changes. As of
December 31, 2007 none of the obligations of state and local government entities held by the Company had an
adverse credit rating. Because the decline in fair value is attributable to changes in interest rates rather than credit
quality, and because the Company has the ability and intent to hold these investments until a recovery of market
value, which may be maturity, the Company does not consider these investments to be other-than-temporarily
impaired at December 31, 2007.

At December 31, 2007, there were 46 U.S. Government agency and government-sponsored enterprise

mortgage-backed securities & collateralized mortgage obligations securities in an unrealized loss position, of
which 42 were in a continuous loss position for 12 months or more. The unrealized losses on U.S. Government
agency and government-sponsored enterprise mortgage-backed securities & collateralized mortgage obligations
were caused by interest rate increases subsequent to the purchase of the securities. It is expected that the
securities would not be settled at a price less than the amortized cost of the investment. Because the decline in
fair value is attributable to changes in interest rates rather than credit quality, and because the Company has the
ability and intent to hold these investments until a recovery of market value, which may be maturity, the
Company does not consider these investments to be other-than-temporarily impaired at December 31, 2007.

At December 31, 2007, there was one other security, a mortgage-backed securities fund, which was in a

continuous loss position for 12 months or more. The unrealized loss on this security was caused by interest rate
increases subsequent to the purchase of the security. It is expected that this security would not be settled at a

63

price less than the amortized cost of the investment. Because the decline in fair value is attributable to changes in
interest rates rather than credit quality, and because the Company has the ability and intent to hold these
investments until a recovery of market value, which may be maturity, the Company does not consider these
investments to be other-than-temporarily impaired at December 31, 2007.

5. Comprehensive Income

The components of comprehensive income are as follows:

Net income as reported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unrealized gain (loss) from securities:
Net unrealized gain (loss) from available for sale securities arising during the

Years Ended December 31,

2007

2006

2005

$32,381

(in thousands)
$32,103

$29,631

period, net of tax of $2,985, $(572) and $(1,949) . . . . . . . . . . . . . . . . . . . . . . . .

5,540

(1,009)

(3,687)

Reclassification adjustment of net gain from sale of available for sale securities

included in income, net of tax of $0, $(13) and $(2) . . . . . . . . . . . . . . . . . . . . . .

—

(23)

(4)

Net unrealized gain (loss) from securities, net of reclassification adjustments . . . .
Unrealized gain from cash flow hedging instruments:
Net unrealized gain from cash flow hedging instruments arising during the

5,540

(1,032)

(3,691)

period, net of tax of $1,552, $197 and $0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2,847

Reclassification adjustment of losses included in income, net of tax of $43, $0

and $0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

78

Net unrealized gain from cash flow hedging instruments . . . . . . . . . . . . . . . . . . . .

2,925

361

—

361

—

—

—

Total comprehensive income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$40,846

$31,432

$25,940

6. Loans

The following is an analysis of the loan portfolio by major types of loans (net of deferred loan fees):

Commercial business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Real estate:

One-to-four family residential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Commercial and five or more family residential properties . . . . . . . .

Total real estate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Real estate construction:

One-to-four family residential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Commercial and five or more family residential properties . . . . . . . .

Consumer

Total real estate construction . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31,

2007

2006

(in thousands)

$ 762,365

$ 617,899

60,991
852,139

913,130

269,115
165,490

434,605
176,559

51,277
687,635

738,912

92,124
115,185

207,309
147,782

Subtotal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2,286,659

1,711,902

Less deferred loan fees, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(3,931)

(2,940)

Total loans, net of deferred loan fees . . . . . . . . . . . . . . . . . . . . . . . . .

$2,282,728

$1,708,962

Loans held for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

4,482

$

933

64

Non-accrual loans totaled $14.0 million and $2.4 million at December 31, 2007 and 2006, respectively. The
amount of interest income foregone as a result of these loans being placed on non-accrual status totaled $814,000
for 2007, $497,000 for 2006 and $106,000 for 2005. At December 31, 2007 and 2006, there were no
commitments of additional funds for loans accounted for on a non-accrual basis.

At December 31, 2007 and 2006, the recorded investment in impaired loans was $12.4 million and $2.1
million, respectively, with a specific valuation allowance of $820,000 for 2007 and $190,000 for 2006. The
average recorded investment in impaired loans for the years ended December 31, 2007, 2006, and 2005, was
$11.4 million, $5.2 million, and $6.3 million, respectively. Interest income recognized on impaired loans was
$13,000 in 2007, $51,000 in 2006, and $45,000 in 2005.

At December 31, 2007 and 2006, the Company had no loans to foreign domiciled businesses or foreign
countries, or loans related to highly leveraged transactions. Substantially all of the Company’s loans and loan
commitments are geographically concentrated in its service areas within Washington and Oregon.

During 2005, the Company purchased vehicle and equipment leases from a company in which a Director of

the Company has a significant ownership interest for an aggregate purchase price of $14.8 million. Prior to
entering into the agreement, the Company obtained an independent fair value assessment of the lease portfolio.
Based on the independent fair value assessment and an internal credit review of the leases, management believes
the transaction was made on substantially the same terms as those prevailing at the time for comparable
transactions with other persons who are not affiliated with the Company and did not involve more than the
normal risk of repayment or present other unfavorable terms. At December 31, 2007, the balance of the lease
financing portfolio was $4.8 million.

The Company and its banking subsidiaries have granted loans to officers and directors of the Company and
related interests. These loans are made on substantially the same terms, including interest rates and collateral, as
those prevailing at the time for comparable transactions with unrelated persons and do not involve more than the
normal risk of collectibility. The aggregate dollar amount of these loans was $13.6 million and $12.0 million at
December 31, 2007 and 2006, respectively. During 2007, $7.7 million of related party loans were made and
repayments totaled $6.1 million. During 2006, $6.5 million related party loans were made and repayments totaled
$5.0 million.

At December 31, 2007 and 2006 $106.3 million and $91.3 million of residential real estate loans were

pledged as collateral on FHLB borrowings.

7. Allowances for Loan and Lease Losses and Unfunded Loan Commitments and Letters of Credit

Changes in the allowance for loan and lease losses are summarized as follows:

Balance at beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loans charged off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recoveries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Years Ended December 31,

2007

2006

2005

$20,182
(1,213)
833

(in thousands)
$20,829
(3,195)
483

$19,881
(1,272)
700

Net charge-offs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Balance established in acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision charged to expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(380)
3,192
3,605

(2,712)
—
2,065

(572)
—
1,520

Balance at end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$26,599

$20,182

$20,829

65

Changes in the allowance for unfunded loan commitments and letters of credit are summarized as follows:

Balance at beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . .
Net changes in the allowance for unfunded loan commitments and letters of credit

Balance at end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Years Ended December 31,

2007

2006

2005

(in thousands)
$339
—

$339

$289
50

$339

$339
10

$349

8.

Premises and Equipment

Land, buildings, and furniture and equipment, less accumulated depreciation and amortization, were as

follows:

Land . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leasehold improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment under capital lease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Furniture and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Computer software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31,

2007

2006

(in thousands)

$ 15,026
40,321
2,208
537
22,685
358
7,655

$ 9,825
32,754
2,042
538
23,297
376
8,414

Total cost

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Less accumulated depreciation and amortization . . . . . . . . . . . . . . . . . . . . . . . .

88,790
(32,668)

77,246
(32,611)

Total

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 56,122

$ 44,635

Total depreciation and amortization expense on buildings and furniture and equipment was $4.5 million,

$4.4 million, and $4.0 million, for the years ended December 31, 2007, 2006, and 2005, respectively.

9. Goodwill and Other Intangibles

The Company recorded $66.3 million of goodwill and $4.8 million of core deposit intangible assets (“CDI”)

as a result of the acquisitions of Mt. Rainier and Town Center on July 23, 2007. Both the goodwill and the CDI
are part of the Retail Banking segment. There were no acquisitions during 2006. In accordance with SFAS 142,
“Goodwill and Other Intangible Assets”, no amortization expense related to goodwill was recognized during the
years presented in this report.

The following table summarizes the changes in the Company’s goodwill and core deposit intangible asset

for the years ended December 31, 2007 and 2006:

Balance at December 31, 2005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amortization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Balance at December 31, 2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amortization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Goodwill

CDI

(in thousands)

$29,723
—
—

29,723
66,288
—

$3,396
—
452

2,944
4,825
719

Balance at December 31, 2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$96,011

$7,050

66

Amortization expense on the CDI was $719,000 in 2007, $452,000 in 2006 and $537,000 in 2005. The
Company estimates that aggregate amortization expense on the CDI will be $1.1 million for 2008, $1.0 million
for 2009, $963,000 for 2010, $893,000 for 2011 and $832,000 for 2012.

10. Deposits

Year-end deposits are summarized in the following table:

December 31,

2007

2006

(in thousands)

Demand and other noninterest-bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest-bearing demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Money market . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Savings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Certificates of deposit less than $100,000 . . . . . . . . . . . . . . . . . . . . . . . . . .
Certificates of deposit $100,000 or greater . . . . . . . . . . . . . . . . . . . . . . . . .

$ 468,237
478,596
609,502
115,324
323,517
502,885

$ 432,293
414,198
516,415
110,795
227,827
321,823

Total

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$2,498,061

$2,023,351

The following table shows the amount and maturity of certificates of deposit that had balances of $100,000

or greater:

Year Ending December 31,

2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(in thousands)

$459,429
31,400
11,609
223
224
—

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$502,885

11. Borrowings

The Company had FHLB advances of $80.7 million and $125.8 million at December 31, 2007 and 2006,
respectively, which represents overnight borrowings. In addition, the Company had FHLB advances of $177.0
million at December 31, 2007 which represents term borrowings of which, $175.0 million matured in January
2008, $1.0 million matures in December 2008 and $1.0 million matures in December 2009. Penalties are
generally required for prepayments of certain long-term FHLB advances. The weighted average interest rate of
FHLB advances at December 31, 2007 and 2006 was 4.59% and 5.56%, respectively.

FHLB advances are collateralized by the following:

Collateral on FHLB Borrowings
Fair value of investment securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recorded value of blanket pledge on residential real estate loans . . . . . . . . . .

$274,354
106,344

$307,530
91,326

Total

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$380,698

$398,856

FHLB Borrowing Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 50,998

$193,056

December 31,

2007

2006

(in thousands)

67

At December 31, 2006, the Company held $20.0 million in wholesale repurchase agreements with an
interest rate of 5.45%. The Company had no such repurchase agreements outstanding at December 31, 2007.

At December 31, 2007 and 2006, the Company held $25.5 million and $22.4 million, respectively, in debt

arising from the trust preferred offerings described below. Additionally, the Company has a $20.0 million
unsecured line of credit with a large commercial bank with an interest rate indexed to LIBOR. At December 31,
2007 and 2006, the outstanding balance was $5.0 million and $0, respectively with an interest rate of 6.23% at
December 31, 2007. In the event of discontinuance of the line by either party, the Company has up to two years
to repay any outstanding balance.

During 2001, the Company, through its subsidiary trust (the “Trust”) participated in a pooled trust preferred

offering, whereby the trust issued $22.0 million of 30 year floating rate capital securities. The capital securities
constitute guaranteed preferred beneficial interests in debentures issued by the trust. The debentures had an initial
rate of 7.29% and a rate of 8.54% at December 31, 2007. The floating rate is based on the 3-month LIBOR plus
3.58% and is adjusted quarterly. The Company through the Trust may call the debt after ten years at par,
allowing the Company to retire the debt early if conditions are favorable. At December 31, 2003, the Company
adopted FIN No. 46 (as revised), “Consolidation of Variable Interest Entities”, whereby the Trust was
deconsolidated with the result being that the trust preferred obligations were reclassified as long-term
subordinated debt on the Company’s December 31, 2003 Consolidated Balance Sheet and the Company’s related
investment in the Trust of $681,000 was recorded in other assets. At December 31, 2007 and 2006, the balance of
the Company’s investment in the Trust remained at $681,000. The subordinated debt payable to the Trust is on
the same interest and payment terms as the trust preferred obligations issued by the Trust. Through recent
acquisition, the Company assumed an additional $3.0 million in floating rate trust preferred obligations; these
debentures had a rate of 8.99% at December 31, 2007. The floating rate is based on the 3-month LIBOR plus
3.75% and is adjusted quarterly. At December 31, 2007, the balance of the Company’s investment in this Town
Center Bancorp Statutory Trust was $93,000 which is recorded in other assets on the Consolidated Balance
Sheets.

12. Income Tax

The components of income tax expense are as follows:

Current tax expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred (benefit) expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Years Ended December 31,

2007

2006

2005

$14,360
(2,607)

(in thousands)
$14,121
(1,988)

$12,936
(1,244)

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$11,753

$12,133

$11,692

68

Significant components of the Company’s deferred tax assets and liabilities are as follows:

Deferred tax assets:
Allowance for loan and lease losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unrealized loss on investment securities available for sale . . . . . . . . . . . . . . . . .
Supplemental executive retirement plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stock option and restricted stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Litigation reserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31,

2007

2006

(in thousands)

$ 9,284
—
4,379
536
627
483

$ 7,124
2,062
2,500
211
—
539

Total deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15,309

12,436

Deferred tax liabilities:
FHLB stock dividends . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Purchase accounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 481 adjustment—deferred fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unrealized gain on investment securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unrealized gain on cash flow hedging instruments . . . . . . . . . . . . . . . . . . . . . . .
Depreciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total deferred tax liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(2,028)
(2,534)
(150)
(954)
(1,750)
(1,165)

(8,581)

(1,949)
(1,149)
(144)
—
(197)
(529)

(3,968)

Net deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 6,728

$ 8,468

A reconciliation of the Company’s effective income tax rate with the federal statutory tax rate is as follows:

Income tax based on statutory rate . . . . . . . . . . . . . . . .
Increase (reduction) resulting from:

Years Ended December 31,

2007

2006

2005

Amount

Percent

Amount

Percent

Amount

Percent

$15,447

35% $15,483

35% $14,463

35%

(in thousands)

Tax credits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax exempt instruments . . . . . . . . . . . . . . . . . . . .
Other nondeductible items . . . . . . . . . . . . . . . . . .

(711)
(2,631)
(352)

(1)
(6)
(1)

(566)
(2,484)
(300)

(1)
(6)
(1)

(412)
(2,208)
(151)

(1)
(6)
0

Income tax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$11,753

27% $12,133

27% $11,692

28%

13. Share-Based Payments

At December 31, 2007, the Company had one equity compensation plan (the “Plan”), which is shareholder

approved, that provides for the granting of share options and shares to eligible employees and directors up to
2,191,482 shares.

Share Awards: Restricted share awards provide for the immediate issuance of shares of Company common

stock to the recipient, with such shares held in escrow until certain service conditions are met, generally five
years of continual service. Recipients of restricted shares do not pay any cash consideration to the Company for
the shares, have the right to vote all shares subject to such grant, and receive all dividends with respect to such
shares, whether or not the shares have vested. The fair value of share awards is equal to the fair market value of
the Company’s common stock on the date of grant.

69

A summary of the status of the Company’s nonvested shares as of December 31, 2007, 2006 and 2005 is

presented below:

Nonvested Shares

Nonvested at January 1, 2005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shares

—

16,000
(8,000)
—

Nonvested at December 31, 2005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8,000

Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

87,025
(6,000)
(5,850)

Nonvested at December 31, 2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

83,175

Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

76,250
(6,500)
(9,600)

Weighted-Average
Grant-Date
Fair Value

—

$24.34
24.34
—

24.34

33.04
27.74
33.10

32.58

31.63
28.27
31.32

Nonvested at December 31, 2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

143,325

$32.36

As of December 31, 2007, there was $3.2 million of total unrecognized compensation cost related to

nonvested share-based compensation arrangements granted under the Plan. That cost is expected to be recognized
over a weighted average period of 3.3 years. The total fair value of shares vested during the years ended
December 31, 2007, 2006, and 2005 was $184,000, $166,000, and $195,000, respectively.

Share Options: Option awards are generally granted with an exercise price equal to the market price of the

Company’s stock at the date of grant; those option awards generally vest based on three years of continual service
and are exercisable for a five-year period after vesting. Option awards granted have a 10-year maximum term.

As part of the terms of the acquisitions of Mt. Rainier and Town Center, share options outstanding under
both Mt. Rainier’s and Town Center’s share option plans at the acquisition date were exchanged for the option to
buy Company shares in accordance with the provisions of the acquisition. All outstanding Mt. Rainier and Town
Center share options became fully vested upon acquisition. On the acquisition date, 119,793 outstanding Mt.
Rainier share options were exchanged for 97,049 Company share options at a weighted average fair value per
share of $13.66, which was included in the acquisition purchase price; 136,164 outstanding Town Center share
options were exchanged for 90,186 Company share options at a weighted average fair value per share of $17.71,
which was also included in the acquisition purchase price. At December 31, 2007, outstanding Company share
options from the exchange with Mt. Rainier and Town Center were 46,967 and 60,995, respectively. The share
options exchanged with both Mt. Rainier and Town Center have been included in the applicable tables presented
below.

The fair value of each option award is estimated on the date of grant using the Black-Scholes option

valuation model. The fair value of all options is amortized on a straight-line basis over the requisite service
periods, which are generally the vesting periods. The expected life of options granted represents the period of
time that they are expected to be outstanding. The expected life is determined based on historical experience with
similar awards, giving consideration to the contractual terms and vesting schedules. Expected volatilities of our
common stock are estimated at the date of grant based on the historical volatility of the stock. The volatility
factor is based on historical stock prices over the most recent period commensurate with the estimated expected
life of the award. The risk-free interest rate is based on the U.S. Treasury curve in effect at the time of the award.
The expected dividend yield is based on dividend trends and the market value of the Company’s stock price at
the time of the award.

70

The only share options granted by the Company during 2007 were related to the acquisitions of Mt. Rainier
and Town Center as described above. Assumptions utilized in the Black-Scholes option valuation model and the
resulting fair value for options granted during the years ended December 31, 2007, 2006 and 2005 are
summarized as follows:

For The Twelve
Months Ended
12/31/2007

For The Twelve
Months Ended
12/31/2006

For The Twelve
Months Ended
12/31/2005

Expected Life (in years) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected Volatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weighted Average Risk-free Interest Rate . . . . . . . . . . . . . . . . . .
Expected Annual Dividend Yield . . . . . . . . . . . . . . . . . . . . . . . . .
Weighted Average Fair Value . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.14
29.47%
4.53%
2.01%

$15.61

—
—
—
—
—

5.16
35.12%
4.21%
0.38%

$ 9.00

A summary of option activity under the Plan as of December 31, 2007, and changes during the year then

ended is presented below:

Options

Balance at December 31, 2006 . . . . . . . . . . . . . . . . . . . . . .
Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exercised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shares

335,397
187,235
(12,000)
(292)
(178,472)

Balance at December 31, 2007 . . . . . . . . . . . . . . . . . . . . . .

331,868

Total Exercisable at December 31, 2007 . . . . . . . . . . . . . .

320,368

Weighted- Average
Exercise Price (1)

Weighted-
Average
Remaining
Contractual
Term

Aggregate
Intrinsic
Value
($000)

$15.76
12.03
23.84
12.61
13.15

$14.77

$14.45

3.4

3.4

$4,973

$4,901

(1) All share options granted by the Company during the current year were related to the acquisitions of Mt.
Rainier and Town Center. Share options outstanding under both Mt. Rainier’s and Town Center’s share
option plans at the acquisition date were exchanged for the option to buy Company shares in accordance
with the provisions of the acquisition. As a result, exercise prices of the exchanged share options do not
equal the market price of the Company’s stock at the date of grant.

The weighted average grant-date fair value of options granted during the years 2007, 2006 and 2005 was

$15.61, $0.00 and $9.00, respectively. The total intrinsic value of options exercised during the years ended
December 31, 2007, 2006, and 2005 was $3.3 million, $2.7 million, and $3.6 million, respectively.

As of December 31, 2007, outstanding stock options consist of the following:

Ranges of
Exercise Prices

$ 3.09 – 6.17
6.18 – 9.25
9.26 – 12.34
12.35 – 15.43
15.44 – 18.51
18.52 – 21.60
21.61 – 24.68
24.69 – 27.77
27.78 – 30.86

Number of
Option
Shares

Weighted-Average
Remaining
Contractual Life

Weighted-Average
Exercise Price of
Option Shares

Number of
Exercisable
Option Shares

Weighted-Average
Exercise Price of
Exercisable Option
Shares

27,740
4,970
119,584
67,171
21,418
33,034
20,970
31,310
5,671

331,868

2.6
5.1
1.7
3.9
5.2
5.3
4.0
4.9
9.1

3.4 years

71

$ 4.76
6.58
11.14
13.76
17.64
19.41
22.81
25.77
30.86

$14.77

27,740
4,970
119,584
67,171
21,418
33,034
9,470
31,310
5,671

320,368

$ 4.76
6.58
11.14
13.76
17.64
19.41
21.92
25.77
30.86

$14.45

It is the Company’s policy to issue new shares for share option exercises and share awards. The Company
expenses awards of share options and shares on a straight-line basis over the related vesting term of the award.
For the 12 months ended December 31, 2007, the Company recognized pre-tax compensation expense related to
share options and shares of $161,000 and $813,000, respectively. For the 12 months ended December 31, 2006,
the Company recognized pre-tax compensation expense related to share options and shares of $226,000 and
$567,000, respectively. The following table illustrates the effect on net income and earnings per share if the fair
value based method established in SFAS 123R had been applied to all outstanding and unvested awards prior to
the adoption SFAS 123R.

Year Ended
December 31, 2005

(in thousands except
per share)

Net income attributable to common stock:

As reported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Add: Restricted share compensation expense included in reported

$29,631

net income, net of related tax effects . . . . . . . . . . . . . . . . . . . . . . .

193

Deduct: Total share-based employee compensation expense,

including restricted share and share options, determined under
fair value method, net of related tax effects . . . . . . . . . . . . . . . . .

(873)

Pro forma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$28,951

Net income per common share:

Basic:

As reported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pro forma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted:

As reported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pro forma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

1.89
1.84

1.87
1.82

14. Regulatory Capital Requirements

The Company (on a consolidated basis) and its banking subsidiaries are subject to various regulatory capital

requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can
initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could
have a direct material effect on the Company and its subsidiaries’ financial statements. Under capital adequacy
guidelines and the regulatory framework for prompt corrective action, the Company and its banking subsidiaries
must meet specific capital guidelines that involve quantitative measures of assets, liabilities, and certain
off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and
classification are also subject to qualitative judgments by the regulators about components, risk weightings, and
other factors. Prompt corrective action provisions are not applicable to bank holding companies.

Quantitative measures established by regulation to ensure capital adequacy require the Company and its
banking subsidiaries to maintain minimum amounts and ratios (set forth in the following table) of total and Tier 1
capital to risk-weighted assets (as defined in the regulations) and of Tier 1 capital to average assets (as defined in
the regulations). Management believes, as of December 31, 2007 and 2006, that the Company, Columbia Bank
and Astoria met all capital adequacy requirements to which they are subject.

72

As of December 31, 2007, the most recent notification from the Federal Deposit Insurance Corporation
categorized Columbia Bank and Astoria as well capitalized under the regulatory framework for prompt corrective
action. To be categorized as well capitalized, an institution must maintain minimum total risk-based, Tier 1 risk-
based, and Tier 1 leverage ratios as set forth in the following tables. There are no conditions or events since the
notification that management believes have changed Columbia Bank’s or Astoria’s category. The Company and
its banking subsidiaries’ actual capital amounts and ratios as of December 31, 2007 and 2006, are also presented
in the following table.

Actual

For Capital
Adequacy
Purposes

To Be Well
Capitalized Under
Prompt Corrective
Action Provision

Amount

Ratio

Amount

Ratio

Amount

Ratio

(dollars in thousands)

As of December 31, 2007:
Total Capital (to risk-weighted assets):

The Company . . . . . . . . . . . . . . . . . . . . . . . . . .
Columbia Bank . . . . . . . . . . . . . . . . . . . . . . . . .
Astoria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$285,606
$257,753
$ 20,214

10.90% $209,618
10.49% $196,532
12.61% $ 12,825

Tier 1 Capital (to risk-weighted assets):

The Company . . . . . . . . . . . . . . . . . . . . . . . . . .
Columbia Bank . . . . . . . . . . . . . . . . . . . . . . . . .
Astoria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$258,658
$232,707
$ 18,312

9.87% $104,809
9.47% $ 98,266
6,412

11.42% $

Tier 1 Capital (to average assets):

The Company . . . . . . . . . . . . . . . . . . . . . . . . . .
Columbia Bank . . . . . . . . . . . . . . . . . . . . . . . . .
Astoria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$258,658
$232,707
$ 18,312

8.54% $121,122
8.23% $113,056
7,706
9.50% $

As of December 31, 2006:
Total Capital (to risk-weighted assets):

The Company . . . . . . . . . . . . . . . . . . . . . . . . . .
Columbia Bank . . . . . . . . . . . . . . . . . . . . . . . . .
Astoria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$265,654
$231,969
$ 18,047

13.23% $160,665
12.50% $148,432
11.98% $ 12,052

Tier 1 Capital (to risk-weighted assets):

The Company . . . . . . . . . . . . . . . . . . . . . . . . . .
Columbia Bank . . . . . . . . . . . . . . . . . . . . . . . . .
Astoria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$245,133
$213,034
$ 16,461

12.21% $ 80,332
11.48% $ 74,216
6,026
10.93% $

Tier 1 Capital (to average assets):

The Company . . . . . . . . . . . . . . . . . . . . . . . . . .
Columbia Bank . . . . . . . . . . . . . . . . . . . . . . . . .
Astoria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$245,133
$213,034
$ 16,461

9.86% $ 99,407
9.32% $ 91,428
7,768
8.48% $

N/A N/A

8.0%
8.0% $245,665
8.0% $ 16,031

10.0%
10.0%

N/A N/A

4.0%
4.0% $147,399
4.0% $ 9,619

6.0%
6.0%

N/A N/A

4.0%
4.0% $141,320
4.0% $ 9,633

5.0%
5.0%

N/A N/A

8.0%
8.0% $185,540
8.0% $ 15,066

10.0%
10.0%

N/A N/A

4.0%
4.0% $111,324
4.0% $ 9,039

6.0%
6.0%

N/A N/A

4.0%
4.0% $114,285
4.0% $ 9,710

5.0%
5.0%

15. Employee Benefit Plans

The Company maintains defined contribution and profit sharing plans in conformity with the provisions of

section 401(k) of the Internal Revenue Code at Columbia Bank and Astoria. The Columbia Bank 401(k) and
Profit Sharing Plan (the “401(k) Plan”), permits eligible Columbia Bank employees, those who are at least 18
years of age and have completed six months of service, to contribute up to 75% of their eligible compensation to
the 401(k) Plan. On a per pay period basis the Company is required to match 50% of employee contributions up
to 3% of each employee’s eligible compensation. The Astoria 401(k) Plan permits eligible employees, those who
are at least 18 years of age and have completed six months of service, to contribute a portion of their salary to the
401(k) Plan. The Company is required to match 50% of employee contributions up to 5% of each employee’s

73

eligible compensation. Additionally, as determined annually by the Board of Directors of the Company, the
401(k) Plan provides for a non-matching discretionary profit sharing contribution. The Company contributed
$811,000 during 2007, $867,000 during 2006, and $800,000 during 2005, in matching funds to the 401(k) Plan.
The Company’s discretionary profit sharing contributions were $1.6 million during 2007 and $1.2 million during
2006 and 2005.

The Company maintains an “Employee Stock Purchase Plan” (the “ESP Plan”) in which substantially all

employees of the Company are eligible to participate. The ESP Plan provides participants the opportunity to
purchase common stock of the Company at a discounted price. Under the ESP Plan, participants can purchase
common stock of the Company for 90% of the lowest price within a six month look-back period. The look-back
periods are January 1st through June 30th and July 1st through December 31st of each calendar year. The 10%
discount is recognized by the Company as compensation expense and does not have a material impact on net
income or earnings per share. Participants of the ESP Plan purchased 21,633 shares for $634,000 in 2007, 18,952
shares for $542,000 in 2006 and 22,031 shares for $486,000 in 2005. At December 31, 2007 there were 66,320
shares available for purchase under the ESP plan.

The Company maintains a supplemental executive retirement plan (the “SERP”), a nonqualified deferred

compensation plan that provides retirement benefits to certain highly compensated executives. The SERP is
unsecured and unfunded and there are no program assets. Associated with the SERP benefit is a death benefit for
each participant’s beneficiary. Beneficiaries are entitled to a split dollar share of proceeds from life insurance
policies purchased by the Company. The SERP projected benefit obligation, which represents the vested net
present value of future payments to individuals under the plan is accrued over the estimated remaining term of
employment of the participants and has been determined by an independent actuarial firm using Income Tax
Regulation 1.72-9, “Table 1 Ordinary Life Annuities,” for the mortality assumptions and a discount rate of 5.75%
in 2007 and 2006. Additional assumptions and features of the plan are a normal retirement age of 65 and a 2%
annual cost of living benefit adjustment. The projected benefit obligation is included in other liabilities on the
Consolidated Balance Sheets.

The following table reconciles the accumulated liability for the projected benefit obligation:

Balance at beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benefit expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Established through acquisitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benefit payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31,

2007

2006

(in thousands)

$4,182
828
3,203
(301)

$3,285
1,005
—
(108)

Balance at end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$7,912

$4,182

The benefits expected to be paid in conjunction with the SERP are presented in the following table:

Years Ending
December 31,

2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2013 through 2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(in thousands)

$ 289
332
456
463
529
3,577

$5,646

74

16. Commitments and Contingent Liabilities

Lease Commitments: The Company leases locations as well as equipment under various non-cancelable
operating leases that expire between 2008 and 2045. The majority of the leases contain renewal options and
provisions for increases in rental rates based on an agreed upon index or predetermined escalation schedule. As
of December 31, 2007, minimum future rental payments, exclusive of taxes and other charges, of these leases
were:

Years Ending
December 31,

2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total minimum payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(in thousands)

$ 3,575
3,338
3,180
3,070
2,883
11,698

$27,744

Total rental expense on buildings and equipment was $3.7 million, $3.5 million, and $3.7 million, for the

years ended December 31, 2007, 2006, and 2005, respectively.

On September 30, 2004, the Company sold its Broadway and Longview locations. The Company maintains
a substantial continuing involvement in the locations through various noncancellable operating leases that do not
contain renewal options. The resulting gain on sale of $1.3 million was deferred using the financing method in
accordance with SFAS No. 13, “Accounting for Leases” and is being amortized over the life of the respective
leases. At December 31, 2007 and 2006, the deferred gain was $565,000 and $784,000, respectively, and is
included in “other liabilities” on the Consolidated Balance Sheets.

Financial Instruments with Off-Balance Sheet Risk: In the normal course of business, the Company makes

loan commitments (unfunded loans and unused lines of credit) and issues standby letters of credit to
accommodate the financial needs of its customers.

Standby letters of credit commit the Company to make payments on behalf of customers under specified
conditions. Historically, no significant losses have been incurred by the Company under standby letters of credit.
Both arrangements have credit risk essentially the same as that involved in extending loans to customers and are
subject to the Company’s normal credit policies, including collateral requirements, where appropriate. At
December 31, 2007 and 2006, the Company’s loan commitments amounted to $857.6 million and $743.5 million,
respectively. Standby letters of credit were $33.6 million and $20.8 million at December 31, 2007 and 2006,
respectively. In addition, commitments under commercial letters of credit used to facilitate customers’ trade
transactions amounted to $1.1 million and $517,000 at December 31, 2007 and 2006, respectively.

Legal Proceedings: The Company and its subsidiaries are from time to time defendants in and are
threatened with various legal proceedings arising from their regular business activities. Management, after
consulting with legal counsel, is of the opinion that the ultimate liability, if any, resulting from these pending or
threatened actions and proceedings will not have a material effect on the financial position or results of
operations of the Company.

On October 3, 2007, Visa completed a restructuring and issued shares of Visa Inc. common stock to its
financial institution members in contemplation of its initial public offering (“IPO”) presently scheduled to occur
in 2008. After the restructuring, member financial institutions became guarantors of Visa’s litigation liabilities
based upon their proportionate share of the membership base. On November 7, 2007, Visa announced that it had
reached a settlement in the amount of $2.07 billion to resolve certain restraint of trade litigation brought by

75

American Express. For the 4th quarter 2007, Columbia recognized a pre-tax charge of approximately $1.8
million, or $0.06 per diluted common share, related to the American Express settlement and the remaining
unsettled Discover, Interchange, and Attridge litigation. Of this $1.8 million, $612,000 is the Company’s
proportionate share of the American Express settlement and $1.16 million is the Company’s estimate of the fair
value of potential losses related to the remaining unsettled litigation in accordance with FASB Interpretation
No. 45, Guarantor’s Accounting and Disclosure Requirements for Guarantees, Including Indirect Guarantees of
Indebtedness of Others—an interpretation of FASB Statements No. 5, 57, and 107 and rescission of FASB
Interpretation No. 34. The $1.8 million charge is included in “Legal and professional services” on the
Consolidated Statements of Income. At this time the Company will not reflect any value for its membership
interest in Visa as a result of the restructuring. However, if the anticipated IPO is completed, it is expected that
Visa will fund an escrow account with a portion of the proceeds. The escrow account will be for the settlement of
Visa’s liabilities associated with restraint of trade actions brought against them. The fair value of the Company’s
proportionate Visa interest will be realized, based upon the value of shares utilized to establish the escrow
account (limited to the amount of the obligation recorded) and shares redeemed for cash. The Company
anticipates that its proportionate share of the Visa IPO proceeds will more than offset its liabilities related to
Visa’s litigation matters.

17. Fair Value of Financial Instruments

The following table summarizes carrying amounts and estimated fair values of selected financial

instruments as well as assumptions used by the Company in estimating fair value:

December 31,

2007

2006

Assumptions Used in
Estimating Fair Value

Carrying
Amount

Fair
Value

Carrying
Amount

Fair
Value

(in thousands)

Assets
Cash and due from banks . . . . . . . . . . . . . . . . . . . . Approximately equal to

Interest-earning deposits with banks . . . . . . . . . . . Approximately equal to

carrying value

$

82,735 $

82,735 $

76,365 $

76,365

carrying value

11,240

11,240

13,979

13,979

Federal funds sold . . . . . . . . . . . . . . . . . . . . . . . . . . Approximately equal to

Securities available for sale . . . . . . . . . . . . . . . . . . Quoted market prices
Securities held to maturity . . . . . . . . . . . . . . . . . . . Quoted market prices
Loans held for sale . . . . . . . . . . . . . . . . . . . . . . . . . Discounted expected

carrying value

—

561,366
—

—
561,366
—

14,000
592,858
1,822

14,000
592,858
1,871

future cash flows

4,482

4,482

933

933

Loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Discounted expected
future cash flows, net
of allowance for loan
losses

Liabilities
Deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fixed-rate certificates
of deposit: Discounted
expected future cash
flows
All other deposits:
Approximately equal to
carrying value

FHLB advances . . . . . . . . . . . . . . . . . . . . . . . . . . . Discounted expected

2,256,129

2,275,949

1,688,780

1,680,658

$2,498,061 $2,499,331 $2,023,351 $2,018,573

Repurchase agreements . . . . . . . . . . . . . . . . . . . . . Discounted expected

future cash flows

257,670

257,535

205,800

205,800

future cash flows

—

—

20,000

20,000

Other borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . Discounted expected

future cash flows

5,061

5,061

198

198

Long-term obligations . . . . . . . . . . . . . . . . . . . . . . Discounted expected

future cash flows

25,519

25,519

22,378

22,378

76

Off-Balance-Sheet Financial Instruments: The fair value of commitments, guarantees, and letters of credit at
December 31, 2007 and 2006, approximates the recorded amounts of the related fees, which are not material. The
fair value is estimated based upon fees currently charged to enter into similar agreements, taking into account the
remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed rate
commitments, the fair value estimation takes into consideration an interest rate risk factor. The fair value of
guarantees and letters of credit is based on fees currently charged for similar agreements.

18. Derivatives and Hedging Activities

Hedging Activities: Statement of Financial Accounting Standards No. 133, Accounting for Derivative

Instruments and Hedging Activities (SFAS 133), as amended and interpreted, establishes accounting and reporting
standards for derivative instruments, including certain derivative instruments embedded in other contracts, and for
hedging activities. As required by SFAS 133, the Company records all derivatives on the balance sheet at fair
value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative and
the resulting designation. Derivatives used to hedge the exposure to changes in the fair value of an asset, liability, or
firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges.
Derivatives used to hedge the exposure to variability in expected future cash flows, or other types of forecasted
transactions, are considered cash flow hedges. To qualify for hedge accounting, the Company must comply with the
detailed rules and strict documentation requirements at the inception of the hedge, and hedge effectiveness is
assessed at inception and periodically throughout the life of each hedging relationship.

The Company’s objective in using derivatives is to add stability to interest income and to manage its

exposure to changes in interest rates. To accomplish this objective, the Company used three interest rate floors to
protect against movements in interest rates below the floors’ strike rates. Subsequent to December 31, 2007, the
Company terminated the floors and received $8,100,000 at termination on January 7, 2008. The interest rate
floors had notional amounts of $70,000,000, $65,000,000, and $65,000,000, with strike rates of 7.75%, 7.50%,
and 7.25%, respectively, and an original maturity date of April 4, 2011. During 2007 and 2006, the floors were
used to hedge the variable cash flows associated with existing variable-rate loan assets that are based on the
prime rate (Prime). For accounting purposes, the floors were designated as cash flow hedges of the overall
changes in cash flows on the first Prime-based interest payments received by the Company each calendar month
during the term of the hedge that, in aggregate for each period, were interest payments on principal from
specified portfolios equal to the notional amount of the floors.

Prior to the termination of the floors, the Company used the “Hypothetical Derivative Method” described in

Statement 133 Implementation Issue No. G20, “Cash Flow Hedges: Assessing and Measuring the Effectiveness
of a Purchased Option Used in a Cash Flow Hedge,” for quarterly prospective and retrospective assessments of
hedge effectiveness, as well as for measurements of hedge ineffectiveness. The effective portion of changes in
the fair value of the floors are initially reported in other comprehensive income (outside of earnings) and
subsequently reclassified to earnings (“interest income on loans” for the hedging relationships described above)
when the hedged transactions affect earnings. Ineffectiveness resulting from the hedge, if any, is recorded as a
gain or loss in the consolidated statements of income as part of noninterest income. The Company also monitored
the risk of counterparty default on an ongoing basis.

Prepayments in hedged loan portfolios were treated in a manner consistent with the guidance in Statement

133 Implementation Issue No. G25, “Cash Flow Hedges: Using the First-Payments-Received Technique in
Hedging the Variable Interest Payments on a Group of Non-Benchmark-Rate-Based Loans,” which allows the
designated forecasted transactions to be the variable Prime-rate-based interest payments on a rolling portfolio of
prepayable interest-bearing loans using the first-payments-received technique, thereby allowing interest
payments from loans that prepay to be replaced with interest payments from new loan originations.

At December 31, 2007 and 2006, the interest rate floors designated as cash flow hedges had a fair value of

$6.9 million and $2.5 million, respectively, which was included in other assets. For the years ended
December 31, 2007, and 2006, the change in net unrealized gains on cash flow hedges, net of tax, reported in the

77

consolidated statements of changes in shareholders’ equity was $2.9 million and $361,000, respectively.
Amounts reported in accumulated other comprehensive income related to the terminated interest rate floors will
be reclassified to interest income when the originally hedged forecasted transactions (interest payments on
variable-rate loans) affect earnings. For the years ended December 31, 2007, and 2006, the change in net
unrealized gains on the cash flow hedges reflects a reclassification of $78,000 and $1,000 respectively, of net
unrealized losses from accumulated other comprehensive income as a reduction to interest income. For the year
ended December 31, 2008, the Company estimates that $1.7 million of deferred gains will be reclassified from
accumulated other comprehensive income into interest income.

No hedge ineffectiveness from the hedging relationship was recognized during the years ended

December 31, 2007 and 2006. During the year ended December 31, 2006, the Company recognized a pre-tax, net
loss of $1.2 million due to the change in fair value of the floors from the inception date (April 3, 2006) to the
date the floors were formally designated in cash flow hedging relationships (July 26, 2006). The loss was
included in other noninterest expense in the consolidated statements of income.

Customer Derivatives: During 2007, the Company entered into several commercial loan interest rate swaps
in order to provide commercial loan clients the ability to swap from variable to fixed interest rates. Under these
agreements, the Company enters into a variable-rate loan agreement with a client in addition to a swap
agreement. This swap agreement effectively swaps the client’s variable rate loan into a fixed rate. The Company
then enters into a corresponding swap agreement with a third party in order to offset its exposure on the variable
and fixed components of the customer agreement. At December 31, 2007, the notional amount of such
arrangements was $38.3 million and investment securities with a fair value of $2.4 million were pledged as
collateral to the third party. As the interest rate swaps with the clients and third parties are not designated as
hedges under SFAS 133, the instruments are marked to market in earnings; however, as the interest rate swaps
are structured to offset each other, changes in market values have no earnings impact.

19. Business Segment Information

The Company is managed along two major lines of business within the Columbia Bank banking subsidiary:
commercial banking and retail banking. The treasury function of the Company, included in the “Other” category,
although not considered a line of business, is responsible for the management of investments and interest rate
risk. The Bank of Astoria banking subsidiary operates as a stand-alone segment of the Company.

The Company generates segment results that include balances directly attributable to business line activities.

The financial results of each segment are derived from the Company’s general ledger system. Overhead,
including sales and back office support functions and other indirect expenses are not allocated to the major lines
of business. Since the Company is not specifically organized around lines of business, most reportable segments
comprise more than one operating activity.

The principal activities conducted by commercial banking are the origination of commercial business loans,

private banking services and real estate lending. Retail banking includes all deposit products, with their related
fee income, and all consumer loan products as well as commercial loan products offered in the Company’s
branch offices.

78

The organizational structure of the Company and its business line financial results are not necessarily
comparable with information from other financial institutions. Financial highlights by lines of business are as
follows:

Condensed Statement of Operations

Year Ended December 31, 2007

Columbia Bank

Bank of
Astoria

Commercial
Banking

Retail
Banking

Other

Total

(in thousands)

Net interest income after provision for loan and

lease loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other income . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

Net income before taxes . . . . . . . . . . . . . . . . . . . . .
Income taxes . . . . . . . . . . . . . . . . . . . . . . . . . .

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8,822
1,581
(6,275)

4,128

$

30,062
3,192
(11,582)

$ 73,484
6,990
(21,906)

$ (7,153) $ 105,215
27,748
(88,829)

15,985
(49,066)

21,672

58,568

(40,234)

44,134
(11,753)

$

32,381

Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$220,693

$1,474,678

$847,589

$635,753

$3,178,713

Year Ended December 31, 2006

Columbia Bank

Bank of
Astoria

Commercial
Banking

Retail
Banking

Other

Total

(in thousands)

Net interest income after provision for loan and

lease loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other income . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

Net income before taxes . . . . . . . . . . . . . . . . . . . . .
Income taxes . . . . . . . . . . . . . . . . . . . . . . . . . .

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8,620
1,539
(5,854)

4,305

$

22,870
2,076
(10,197)

$ 70,746
6,161
(19,788)

$ (6,538) $
14,896
(40,295)

14,749

57,119

(31,937)

95,698
24,672
(76,134)

44,236
(12,133)

$

32,103

Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$223,944

$1,204,269

$458,085

$666,833

$2,553,131

Year Ended December 31, 2005

Columbia Bank

Bank of
Astoria

Commercial
Banking

Retail
Banking

Other

Total

(in thousands)

Net interest income after provision for loan and

lease loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other income . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

Net income before taxes . . . . . . . . . . . . . . . . . . . . .
Income taxes . . . . . . . . . . . . . . . . . . . . . . . . . .

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

8,199
1,192
(5,760)

3,631

26,823
2,561
(9,391)

$ 55,083
6,324
(18,215)

$

(713) $

14,709
(39,489)

19,993

43,192

(25,493)

89,392
24,786
(72,855)

41,323
(11,692)

$

29,631

Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$209,932

$1,024,969

$510,543

$631,878

$2,377,322

79

20. Parent Company Financial Information

Condensed Statements of Operations—Parent Company Only

Income
Dividend from bank subsidiary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest on loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest on securities available for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest-earning deposits:

Unrelated banks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Years Ended December 31,

2007

2006

2005

(in thousands)

$ 4,475
—
—

$17,200
—
53

$ 6,000
1
120

590
—
64

435
—
79

2
48
—

Total Income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5,129

17,767

6,171

Expense
Compensation and employee benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total Expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income before income tax benefit and equity in undistributed net income of

451
2,177
948

3,576

436
1,992
889

3,317

402
1,712
814

2,928

subsidiaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income tax benefit

1,553
(1,031)

14,450
(1,070)

3,243
(953)

Income before equity in undistributed net income of subsidiaries . . . . . . . . . . . . .
Equity in undistributed net income of subsidiaries . . . . . . . . . . . . . . . . . . . . . . . . .

2,584
29,797

15,520
16,583

4,196
25,435

Net Income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$32,381

$32,103

$29,631

Condensed Balance Sheets—Parent Company Only

December 31,

2007

2006

(in thousands)

Assets
Cash and due from subsidiary bank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest-earning deposits with unrelated banks . . . . . . . . . . . . . . . . . . . . . . . . .

$

1,663
9,286

$

3,631
11,719

Total cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Investment in banking subsidiaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10,949
359,858
2,337

15,350
259,384
130

Total Assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$373,144

$274,864

Liabilities and Shareholders’ Equity
Long-term subordinated debt
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 25,519
5,000
894

31,413
341,731

$ 22,378
—
139

22,517
252,347

Total Liabilities and Shareholders’ Equity . . . . . . . . . . . . . . . . . . . . . . . .

$373,144

$274,864

80

Condensed Statements of Cash Flows—Parent Company Only

Operating Activities
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments to reconcile net income to net cash provided by operating

activities:

Years Ended December 31,

2007

2006

2005

(in thousands)

$ 32,381

$ 32,103

$ 29,631

Equity in undistributed earnings of subsidiaries . . . . . . . . . . . . . . . . . . . . .
Tax benefit associated with stock options . . . . . . . . . . . . . . . . . . . . . . . . . .
Excess tax benefit from stock-based compensation . . . . . . . . . . . . . . . . . . .
Stock-based compensation expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net changes in other assets and liabilities . . . . . . . . . . . . . . . . . . . . . . . . . .

(29,797)
—
(71)
94
952

(16,583)
—
(117)
185
1,364

(25,435)
775
—
297
(67)

Net cash provided by operating activities . . . . . . . . . . . . . . . . . . . . . .

3,559

16,952

5,201

Investing Activities
Proceeds from maturities of securities available for sale . . . . . . . . . . . . . . . . . . .
Loan principal collected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquisition of subsidiaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net cash provided by (used in) investing activities . . . . . . . . . . . . . . .

Financing Activities
Net increase (decrease) in short-term borrowings . . . . . . . . . . . . . . . . . . . . . . . .
Cash dividends paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from issuance of common stock, net
. . . . . . . . . . . . . . . . . . . . . . . . . .
Excess tax benefit from stock-based compensation . . . . . . . . . . . . . . . . . . . . . . .
Purchase and retirement of common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other, net

—
—
(2,497)

(2,497)

5,000
(11,249)
2,836
71
(2,121)
—

5,000
—
—

5,000

(2,500)
(9,117)
2,090
117
—

66

—
76
—

76

—
(6,132)
2,208
—
—
66

Net cash used in financing activities . . . . . . . . . . . . . . . . . . . . . . . . . .

(5,463)

(9,344)

(3,858)

Increase (decrease) in cash and cash equivalents . . . . . . . . . . . . .
Cash and cash equivalents at beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . .

(4,401)
15,350

12,608
2,742

1,419
1,323

Cash and cash equivalents at end of year . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 10,949

$ 15,350

$ 2,742

Supplemental Non-Cash Investing & Financing Activities
Issuance of stock in acquisitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 57,119

$ — $ —

81

21. Summary Of Quarterly Financial Information (Unaudited)

Quarterly financial information for the years ended December 31, 2007 and 2006 is summarized as follows:

2007
Total interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total interest expense . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net interest income . . . . . . . . . . . . . . . . . . . . . . . . .
Provision for loan and lease losses . . . . . . . . . . . . . . . . .
Noninterest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Noninterest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income before income tax . . . . . . . . . . . . . . . . . . . .
Provision for income tax . . . . . . . . . . . . . . . . . . . . . . . . .

First
Quarter

Second
Quarter

Third
Quarter

Fourth
Quarter

Year Ended
December 31,

(in thousands, except per share amounts)

$41,146
16,443

$43,255
17,560

$49,378
20,518

$50,438
20,876

$184,217
75,397

24,703
638
6,177
20,402

9,840
2,557

25,695
329
6,741
20,266

11,841
3,297

28,860
1,231
7,631
22,425

12,835
3,579

29,562
1,407
7,199
25,736

9,618
2,320

108,820
3,605
27,748
88,829

44,134
11,753

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 7,283

$ 8,544

$ 9,256

$ 7,298

$ 32,381

Net income per common share:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$
$

0.45
0.45

$
$

0.53
0.53

$
$

0.53
0.53

$
$

0.41
0.41

$
$

1.93
1.91

2006
Total interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total interest expense . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net interest income . . . . . . . . . . . . . . . . . . . . . . . . .
Provision for loan and lease losses . . . . . . . . . . . . . . . . .
Noninterest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Noninterest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income before income tax . . . . . . . . . . . . . . . . . . . .
Provision for income tax . . . . . . . . . . . . . . . . . . . . . . . . .

$35,069
10,763

$37,410
13,108

$39,166
14,761

$40,030
15,280

$151,675
53,912

24,306
215
5,973
18,340

11,724
3,536

24,302
250
6,267
21,136

9,183
1,944

24,405
650
6,108
18,098

11,765
3,430

24,750
950
6,324
18,560

11,564
3,223

97,763
2,065
24,672
76,134

44,236
12,133

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 8,188

$ 7,239

$ 8,335

$ 8,341

$ 32,103

Net income per common share:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$
$

0.52
0.51

$
$

0.45
0.45

$
$

0.52
0.52

$
$

0.52
0.52

$
$

2.01
1.99

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND

FINANCIAL DISCLOSURE

None

ITEM 9A. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

An evaluation was carried out under the supervision and with the participation of the Company’s
management, including the Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”), of the
effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the
Securities Exchange Act of 1934). Based on that evaluation, the CEO and CFO have concluded that as of the end
of the period covered by this report, our disclosure controls and procedures are effective in ensuring that the
information required to be disclosed by us in the reports we file or submit under the Securities Exchange Act of
1934 is (i) accumulated and communicated to our management (including the CEO and CFO) to allow timely
decisions regarding required disclosure, and (ii) recorded, processed, summarized and reported within the time
periods specified in the SEC’s rules and forms.

82

Internal Control Over Financial Reporting

Management’s Annual Report On Internal Control Over Financial Reporting

The Company’s management is responsible for establishing and maintaining adequate internal control over

financial reporting, the internal control system has been designed to provide reasonable assurance to the
Company’s management and Board of Directors regarding the preparation and fair presentation of the
Company’s published financial statements.

Reasonable assurance includes the understanding that there is a remote likelihood that material

misstatements will not be prevented or detected on a timely basis.

Management has evaluated the effectiveness of its internal control over financial reporting as of
December 31, 2007 based on the control criteria established in a report entitled Internal Control-Integrated
Framework, issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on such
evaluation, management has concluded that the Company’s internal control over financial reporting is effective
as of December 31, 2007.

Our independent registered public accounting firm has issued an attestation report on management’s
assessment of our internal control over financial reporting, which appears in this annual report on Form 10K.

83

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of Columbia Banking System, Inc.
Tacoma, Washington

We have audited the internal control over financial reporting of Columbia Banking System, Inc. and its

subsidiaries (the “Company”) as of December 31, 2007, based on criteria established in Internal Control — Integrated
Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. Because
management’s assessment and our audit were conducted to meet the reporting requirements of Section 112 of the
Federal Deposit Insurance Corporation Improvement Act (FDICIA), management’s assessment and our audit of the
Company’s internal control over financial reporting included controls over the preparation of the schedules equivalent
to the basic financial statements in accordance with the instructions for the Consolidated Reports of Condition and
Income for Schedules RC, RI and RI-A. The Company’s management is responsible for maintaining effective internal
control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting,
included in the accompanying Management’s Annual Report On Internal Control Over Financial Reporting. Our
responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board

(United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about
whether effective internal control over financial reporting was maintained in all material respects. Our audit included
obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness
exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and
performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides
a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed by, or under the supervision of, the
company’s principal executive and principal financial officers, or persons performing similar functions, and effected by
the company’s board of directors, management, and other personnel to provide reasonable assurance regarding the
reliability of financial reporting and the preparation of financial statements for external purposes in accordance with
generally accepted accounting principles. A company’s internal control over financial reporting includes those policies
and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the
transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are
recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting
principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of
management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely
detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on
the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of

collusion or improper management override of controls, material misstatements due to error or fraud may not be
prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control
over financial reporting to future periods are subject to the risk that the controls may become inadequate because of
changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting

as of December 31, 2007, based on the criteria established in Internal Control—Integrated Framework issued by the
Committee of Sponsoring Organizations of the Treadway Commission.

We have not examined and, accordingly, we do not express an opinion or any other form of assurance on

management’s statement referring to compliance with laws and regulations.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board
(United States), the consolidated financial statements as of and for the year ended December 31, 2007 of the Company
and our report dated March 5, 2008 expressed an unqualified opinion on those financial statements.

Seattle, Washington
March 5, 2008

84

ITEM 9B. OTHER INFORMATION

None.

85

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

Information regarding “Directors, Executive Officers and Corporate Governance” is set forth under the
headings “Proposal: Election of Directors”, “Management—Executive Officers Who are Not Directors” and
“Corporate Governance” in the Company’s 2008 Annual Proxy Statement (“Proxy Statement”) and is
incorporated herein by reference.

Information regarding “Compliance with Section 16(a) of the Exchange Act” is set forth under the section

“Section 16(a) Beneficial Ownership Reporting Compliance” of the Company’s Proxy Statement and is
incorporated herein by reference. Information regarding the Company’s audit committee financial expert is set
forth under the heading “Board Structure and Compensation—What Committees has the Board Established” in
our Proxy Statement and is incorporated by reference.

On February 25, 2004, consistent with the requirements of the Sarbanes-Oxley Act of 2002, the Company

adopted a Code of Ethics applicable to senior financial officers including the principal executive officer. The
Code of Ethics was filed as Exhibit 14 to our 2003 Form 10-K Annual Report and can be accessed electronically
by visiting the Company’s website at www.columbiabank.com.

ITEM 11. EXECUTIVE COMPENSATION

Information regarding “Executive Compensation” is set forth under the headings “Board Structure and
Compensation” and “Executive Compensation” of the Company’s Proxy Statement and is incorporated herein by
reference.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

AND RELATED STOCKHOLDER MATTERS

Information regarding “Security Ownership of Certain Beneficial Owners and Management and Related
Stockholder Matters” is set forth under the heading “Stock Ownership” of the Company’s Proxy Statement and is
incorporated herein by reference.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR

INDEPENDENCE

Information regarding “Certain Relationships and Related Transactions, and Director Independence” is set

forth under the headings “Interest of Management in Certain Transactions” and “Corporate Governance—
Director Independence” of the Company’s Proxy Statement and is incorporated herein by reference.

ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

Information regarding “Principal Accounting Fees and Services” is set forth under the heading “Independent

Public Accountants” of the Company’s Proxy Statement and is incorporated herein by reference.

86

ITEM 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a)(1) Financial Statements:

PART IV

The Consolidated Financial Statements and related documents set forth in “Item 8. Financial Statements and

Supplementary Data” of this report are filed as part of this report.

(2) Financial Statements Schedules:

All other schedules to the Consolidated Financial Statements required by Regulation S-X are omitted
because they are not applicable, not material or because the information is included in the Consolidated Financial
Statements and related notes in “Item 8. Financial Statements and Supplementary Data” of this report.

(3) Exhibits:

The response to this portion of Item 15 is submitted as a separate section of this report appearing

immediately following the signature page and entitled “Index to Exhibits.”

87

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant
has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, on the 6th
day of March 2008.

COLUMBIA BANKING SYSTEM, INC.

(Registrant)

By:

/s/ MELANIE J. DRESSEL

Melanie J. Dressel
President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by
the following persons on behalf of the registrant and in the capacities indicated, on the 6th day of March 2008.

Principal Executive Officer:

By:

/s/ MELANIE J. DRESSEL

Melanie J. Dressel
President and Chief Executive Officer

Principal Financial Officer:

By:

/s/ GARY R. SCHMINKEY

Gary R. Schminkey
Executive Vice President and Chief Financial Officer

Principal Accounting Officer:

By:

/s/ CLINT E. STEIN

Clint E. Stein
Senior Vice President and Chief Accounting Officer

Melanie J. Dressel, pursuant to a power of attorney that is being filed with the Annual Report on

Form 10-K, has signed this report on March 6, 2008 as attorney in fact for the following directors who constitute
a majority of the Board.

[John P. Folsom]
[Frederick M. Goldberg]
[Thomas M. Hulbert]
[Thomas L. Matson]
[Daniel C. Regis]

/s/ MELANIE J. DRESSEL

Melanie J. Dressel
Attorney-in-fact

March 6, 2008

[Donald Rodman]
[William T. Weyerhaeuser]
[James M. Will]

88

Exhibit No.

INDEX TO EXHIBITS

3.1

3.2

4.1

4.2

10.1

10.2

10.3

10.4

10.5

10.6

10.7

10.8

10.9

10.10

10.11

10.12

10.13

10.14

10.15

10.16

10.17

10.18

10.19

10.20

Amended and Restated Articles of Incorporation (1)

Amended and Restated Bylaws (2)

Specimen of common stock certificate (3)

Pursuant to Item 601(b) (4) (iii) (A) of Regulation S-K, copies of instruments defining the rights of
holders of long-term debt and preferred securities are not filed. The Company agrees to furnish a
copy thereof to the Securities and Exchange Commission upon request

Amended and Restated Stock Option and Equity Compensation Plan (4)

Form of Stock Option Agreement

Form of Restricted Stock Agreement

Form of Stock Appreciation Right Agreement

Form of Restricted Stock Unit Agreement

Amended and Restated Employee Stock Purchase Plan (5)

Office Lease, dated as of December 15, 1999, between the Company and Haub Brothers
Enterprises Trust (3)

Employment Agreement between the Bank, the Company and Melanie J. Dressel effective
August 1, 2004 (6)

Severance Agreement between the Company and Mr. Gary R. Schminkey effective November 15,
2005 (7)

Form of Change in Control Agreement between the Bank , and Mr. Mark W. Nelson and Mr.
Andrew McDonald

Form of Long-Term Care Agreement between the Bank, the Company, and each of the following
directors: Mr. Folsom, Mr. Hulbert, Mr. Matson, Mr. Rodman, Mr. Weyerhaeuser and Mr. Will (8)

Form of Supplemental Executive Retirement Plan between Columbia Banking System, Inc.,
Columbia State Bank, its wholly owned banking subsidiary, and each of the following executive
officers effective August 1, 2001: Melanie J. Dressel and Gary R. Schminkey, and for Mark W.
Nelson, whose agreement is effective July 1, 2003 (8)

Form of Amended and Restated Split Dollar Life Insurance Agreement between Columbia Banking
System, Inc., Columbia State Bank, its wholly owned banking subsidiary, and each of the
following officers: Melanie J. Dressel, Gary R. Schminkey, and Mark W. Nelson (9)

Deferred Compensation Plan (401 Plus Plan) dated December 17, 2003 for directors and key
employees (10)

Change in Control Agreement between the Bank and Mr. Kent L. Roberts dated December 4, 2006 (11)

Form of Supplemental Compensation Agreement between the Bank and Mr. Andrew McDonald

Town Center Bancorp 2004 Stock Incentive Plan (12)

Town Center Bancorp Form of Restricted Stock Award Agreement (12)

Mountain Bank Holding Company Director Stock Option Plan (13)

Mountain Bank Holding Company Form of Non-employee Director Stock Option Agreement (13)

89

Exhibit No.

10.21

10.22

10.23

14

21

23

24

31.1

31.2

32

Mountain Bank Holding Company 1999 Employee Stock Option Plan (13)

Mountain Bank Holding Company Form of Employee Stock Option Agreement (13)

Mt. Rainier National Bank 1990 Stock Option Plan (13)

Code of Ethics (10)

Subsidiaries of the Company

Consent of Deloitte & Touche LLP

Power of Attorney

Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of
2002

Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of
2002

Certification Filed Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

Incorporated by reference to Exhibits 3.1 of the Company’s Quarterly Report on Form 10-Q for the quarter
ended March 31, 2005
Incorporated by reference to Exhibit 3.1 of the Company’s Quarterly Report on Form 10-Q for the quarter
ended September 30, 2007
Incorporated by reference to Exhibits 4.1 and 10.5 of the Company’s Annual Report on Form 10-K for the
year ended December 31, 2000
Incorporated by reference to Exhibit 99.1 of the Company’s S-8 Registration Statement (File No.
333-125298) filed May 27, 2005
Incorporated by reference to Exhibit 99.1 of the Company’s S-8 Registration Statement (File No.
333-135439) filed June 29, 2006
Incorporated by reference to Exhibit 10.2 of the Company’s Quarterly Report on Form 10-Q for the quarter
ended June 30, 2004
Incorporate by reference to Exhibit 10.11 of the Company’s Annual Report on Form 10-K for the year
ended December 31, 2005
Incorporated by reference to Exhibits 10.1—10.3 of the Company’s Quarterly Report on Form 10-Q for the
quarter ended September 30, 2001
Incorporated by reference to Exhibit 10.20 of the Company’s Annual Report on Form 10-K for the year
ended December 31, 2001
Incorporated by reference to Exhibits 10.18 and 14 of the Company’s Annual Report on Form 10-K for the
year ended December 31, 2003
Incorporated by reference to Exhibit 10.1 of the Company’s Quarterly Report on Form 10-Q for the quarter
ended March 31, 2007
Incorporated by reference to Exhibits 10.1 and 10.2 of the Company’s S-8 Registration Statement (File
No. 333-145207) filed August 7, 2007
Incorporated by reference to Exhibits 99.1—99.5 of the Company’s S-8 Registration Statement (File
No. 333-144811) filed July 24, 2007

90

Assets

PeoPle

Community

mArkets

ProfitAbility