Growing Market ShareNew Loan Originations

$0

$50

$100

$150

$200

$250

$300

Solid new loan production continues in 2014 with over $250 million in Q3

Q3 2013

Q1 2014

Q2 2013

Q4 2013

Q2 2014

Q32014

Columbia ranks #8 in deposit market share out of 98 institutions in Washington State and #7 out of 57 institutions in Oregon.

#1 Market Share Ranking:

WASHINGTON•PierceCounty•BainbridgeIsland•EnumclawPlateau•CowlitzCounty

OREGON•HoodRiverCounty•WascoCounty•LincolnCounty

Source: FDIC as of June 30, 2014

Financial information as of September 30, 2014

Nonperforming Loans

To period-end noncovered loans.

.5%

1%

1.5%

2%

2.5%

Q22014

Q32014

Q32013

We continue to see a positive trend in nonperforming loans.

Q12014

Q42013

Wealth Management Solutions:•PrivateBanking•ProfessionalBanking•CBFinancialServices1•TrustandInvestmentServices2

1Securities offered through LPL Financial, Member FINRA/SIPC. Insurance products offered through LPL Financial or its licensed affiliates: CB Financial Services and Columbia Bank are not registered broker/dealers and are not affilitated with LPL Financial.

2 Columbia Bank Trust and Investment Services operates through Columbia Bank, a wholly owned subsidiary of Columbia Banking System. Investments are:

• Not a deposit • Not FDIC insured • Not insured by any federal government agency • Not guaranteed by the bank • May go down in value • Consult your attorney as to your applicable situation.

Not FDIC insured No Bank Guarantee May Lose Value Not a Deposit

Not Insured by any Federal Government Agency

The ServiceS You Need The Attention You deserve

Knowing our customers – and knowing them well – has never been more important. We are committed to providing the services and experience our customers need along with the personal care and attention ofatruecommunitybank.Forus,bankinghasalwaysbeenaboutpeople.Wetakeprideinknowingourcustomers and nurturing their success.

All credit products subject to approval.

Wealth Management Solutions:•PrivateBanking•ProfessionalBanking•CBFinancialServices1•TrustandInvestmentServices2

PrivateBankingProfessionalBankingCBFinancialServices1

Trust and Investment Services2

PersonalServices BusinessServices Wealth ManagementPersonalCheckingandInterestCheckingPersonalSavingsandMoneyMarketCDs and IRAsHealth SavingsPremierPersonalOnlineBankingPersonalMobileBankingPersonalBillPayVISA® Debit CardsVISA Credit CardsLines of CreditPersonalLoansResidential LendingHomeEquityLoansorLinesInternationalBanking

BusinessCheckingandInterestCheckingBusinessSavings,MoneyMarketandCDsBusinessOnlineBankingBusinessBillPayRemote Deposit CaptureBusinessSweepsTreasuryManagementMerchant Card ServicesInternationalBankingSBALoansAgricultural LoansCommercial Loans and LinesCommercialRealEstateLoansEquipmentLoansVISA® Debit CardsVISA Credit Cards

Columbia Bank was named as one of "Washington’s Best Workplaces" 2014 by the Puget Sound Business Journal for the eighth consecutive year.

5 STAR RATING

BAUER FINANCIAL

BEST BANK

IN WASHINGTON STATEFORBES

ALL-STARAWARD

SBA PORTLAND DISTRICT

TOP PLACES TO WORK

BUSINESS EXAMINER

TOP LENDER

AWARDNORTHWEST BUSINESS

ASSOCIATION

TOP 5041ST MORTGAGE

LENDERSBA

SEATTLE DISTRICT

Member FDIC Equal Housing Lender

For additional information:

WHAT'S NEW AT COLUMBIA...

Washington

OregonIdaho

Pa

cif

ic O

ce

an

Columbia Announces Agreement to Merge with IntermountainCommunityBancorpOnJuly23,2014ColumbiaBankingSystem,Inc.announcedthesigningofadefinitiveagreementtomergeIntermountainCommunityBancorpintoColumbia,withaclosingdateanticipatedinthefourthquarter,2014.Intermountain,headquarteredinSandpoint,Idaho,operatesasPanhandleStateBankanditsdivisions,IntermountainCommunityBankandMagicValleyBank.

Withthecompletionofthemerger,Columbia’stotalassetswillexceed$8billion,withover150branchesinWashington,OregonandIdaho,andcapitallevelswellabovethethresholdtobeconsidered“wellcapitalized”underregulatorystandards.

Formoreinformationabouttheacquisition,pleasevisitwww.columbiabank.com.

Melanie Dressel named one of American Banker’sMostPowerfulWomeninBanking Forthesixthtime,MelanieDressel,PresidentandCEOofColumbiaBankingSystem,Inc.andColumbiaBank,wasnamedoneoftheMostPowerfulWomeninBankingfor2014byAmerican Banker Magazine.Sheranked15thintheannuallist,whichevaluateseachcandidateonherimpactathercompany,ontheindustryandinthecommunity,leadershipskillsandqualitiessuchasinnovation.

MelanieDresselcommented,“Iamhonoredtoreceivethisprestigiousaward.Anysuccess I have achieved has been a direct result of those with whom I surround myself.Iamsoprivilegedtohavetheopportunitytoleadourwonderfulcompany,andIamequallyprivilegedtobeapartofthebankingindustry."

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About Columbia BankColumbia Bank is a Pacific Northwest community bank headquartered in Tacoma, Washington with a network of 154 branches throughout Washington, Oregon and Idaho. As a regional community bank, Columbia is able to offer a comprehensive array of financial solutions and expertise to meet the needs of businesses and individuals while providing the kind of service you expect when doing business with a neighbor. Columbia’s community banking philosophy places the highest priority on relationship-based customer service and providing a positive work environment, while striving to make meaningful contributions to each of the communities it serves. We consider it a privilege to work alongside our customers, giving our time, talent and resources to make our communities better places to live and work. We truly believe that our people make the difference. Our strong bank and thriving culture are built upon our ability to attract and retain talented bankers who posses industry expertise, deep knowledge of and affinity for their local community and a commitment to maintaining exceptional customer service standards. Customer service is the cornerstone of the Columbia Bank culture and we work diligently to ensure we consistently meet our high standards both internally and externally. We attribute the recognition we have received throughout the years to our employees’ ability to consistently deliver on this promise.

The Columbia Advantage• $7.47 billion in assets; $4.76 billion in net loans; $6.24 billion in deposits

• Significant capital levels; well in excess of regulatory minimums

• Substantial sources of liquidity

• 96% - Core deposits based on customer relationships

• Strong retail system of 154 branches in Washington, Oregon and Idaho

• Diversified loan and deposit portfolios

Member FDIC Equal Housing Lender

COMMUNITY MINDED

COMMUNITY MADE

ExEcutivE OfficErsMelanie J. Dressel President and chief Executive Officer, columbia Banking system, inc. and columbia Bank

Kumi Yamamoto BaruffiExecutive vice President,General counsel

Dave c. LawsonExecutive vice President,Human resources Director

Andy McDonaldExecutive vice President,chief credit Officer

Hadley s. robbinsExecutive vice President,chief Operating Officer

clint E. steinExecutive vice President,chief financial Officer

BOArD Of DirEctOrs

William t. Weyerhaeuser chairman, columbia Banking system, inc. and columbia Bank; Director of clearwater Paper corporation

Melanie J. DresselPresident and chief Executive Officer, columbia Banking system, inc. and columbia Bank

David A. Dietzlerformer Managing Partner of KPMG LLP, Portland, Oregon; Director, Portland General Electric company

craig D. EerkesPresident and chief Executive Officer sun Pacific Energy, inc.

Mark A. finkelsteinformer Executive vice President — corporate Development, General counsel and corporate secretary, Emeritus corporation

John P. folsomformer President, Brown & Brown, inc.

frederick Goldbergsaltchuk resources, inc.; Managing Partner of Goldberg investments

thomas M. Hulbert President and chief Executive Officer, Hulco, inc. and Winsor corporation

Michelle Lantow chief Administrative Officer, New seasons Market

Mae fujita Numatachief Operating Officer, MMGL corp. and founder of Numata consulting PLLc

Daniel c. regisformer Managing Director of Digital Partners

Betsy seatonsenior vice President — Operations, saltchuk company

James M. WillPresident, titus-Will Enterprises

Financial information as of September 30, 2014

Though some banks have reduced their commitment to local communities, Columbia Bank continues to play a vital role. We proudly contribute to each community we are a part of and consider it a privilege to support and volunteer in the communities we serve. We believe supporting the greater good alongside our customers ensures successful community partnerships from which everyone benefits. Here is a sampling of the some of the organizations we support throughout our footprint.

2nd HarvestAdams County FairAdelante MujeresAgFestAlaska Fisheries Development FoundationAltrusa Int'l of Yaquina BayAlzheimer's AssociationAmerican Cancer SocietyAmerican Heart AssociationAmerican Lung AssociationAmerican Red CrossAnnie Wright SchoolArtsFundAsia Pacific Cultural CenterAssistance League of the Columbia PacificAssociation of the United States Army (AUSA)Association of Washington BusinessAstoria RegattaAstoria Scandinavian Heritage AssociationBainbridge Island Arts and HumanitiesBainbridge Island Downtown AssociationBates Technical College FoundationBellarmine Preparatory SchoolBellingham Festival of MusicBoy Scouts of AmericaBoys & Girl's ClubBroadway Center for Performing Arts Capital City Marathon AssociationCASA Central Eastside Industrial CouncilCentralia College FoundationChamber of Commerce in various citiesCharles Wright AcademyChildren's Museum of TacomaChinese American Citizens Alliance Clatsop Community CollegeClatsop County Historical Society Clover Park Technical College FoundationCoastal Conservation Association of OregonColumbia Gorge Community College Columbia Memorial Hospital FoundationColumbia River Economic Development Council Columbia River Maritime MuseumColumbia Theatre for the Performing Arts Communities in SchoolsCommunity Health CareCommunity Home Health & HospiceCommunity Youth Services (CYS)Distinguished Young Woman Wasco CountyDungeness River Audubon Center Eastern Washington UniversityEconomic Development Boards in various counties

Enterprise For EquityExceptional Families NetworkExecutive Development InstituteFamilies UnlimitedFood For Lane CountyFranciscan FoundationFuture Farmers of America Gig Harbor Downtown Waterfront Alliance Greater Metro Parks Foundation Greater Spokane IncorporatedGoodwill IndustriesGROW WashingtonHabitat For Humanity Hands On Children's MuseumHazel Dell Salmon Creek Business Association Helix Heart of the Country RodeoHermiston Education FoundationHomer Davenport Community FestivalHoopla AssociationHopeSparksHousing HopeHousing Resources Humane Society Smart Women Smart Money Inland Northwest Blood Center Innovative Services NWJob Carr MuseumJunior AchievementKiwanis Clubs LeMay America's Car MuseumLiberty TheaterLifeWorks NWLower Columbia College FoundationMarch of DimesMary Bridge Children’s HospitalMarylhurst UniversityMeals on Wheels Medical Foundation of Marion & Polk CountiesMid-Columbia Health Foundation Milgard - School of Business (University of Washington)Mt. Hood Community College District FoundationMulticare Emergency ServicesMultiCare Health FoundationMuseum of GlassNorth Lincoln Hospital FoundationNorthwest Children’s Fund Northwest Fisheries AssociationNorthwest Intercollegiate Rodeo FinalsNorthwest Pilot Project (NWPP)Nuestra CasaNW Business for Culture & ArtsOlympia Symphony Orchestra (OSO)

Olympic Medical Center FoundationOregon 4H FoundationOregon Dental FoundationOregon Entrepreneurs NetworkPacific Northwest Defense CoalitionPierce College Foundation Portland Art MuseumPortland Women’s Crisis Providence Healthcare Foundation Rebuilding Together South SoundRocky Mountain Elk Foundation (RMEF)Rotary Clubs in various citiesSafe StreetsSCORE (SBA Volunteer Arm)SEA-Mar CHC/LEAPSequim Irrigation FestivalShared Housing ServicesSibling HouseSnohomish Education Foundation Spokane Jr. Livestock Show - Pomeroy BoostersSpokane SymphonySt. Charles BorromeoSt. John’s Medical FoundationStadium Historic District Business Association TACID (Tacoma Area Coalition of Individuals with Disabilities)Tacoma Art MuseumTacoma Pierce County Affordable Housing ConsortiumTacoma Symphony Tacoma Urban League TAF - Technology Access FoundationThe Martinez FoundationThe Salvation ArmyTillamook County Rodeo AssociationTillamook Education FoundationTri-State Hospital FoundationTualatin Library FoundationUnited Way Walla Walla SymphonyWashington Policy CenterWashington State AthleticsWashington State Historical SocietyWashington Women’s Education & Employment WWEEWellness HouseWellspring Family ServicesWesley Homes FoundationWestern Washington UniversityWhitman County Hospital FoundationYMCAYWCA

Member FDIC Equal Housing Lender

PART OF THE COMMUNITYWHEN IT MATTERS MOST