TACOMA, Wash., April 13, 2012 /PRNewswire/ -- Columbia Banking System, Inc. (NASDAQ: COLB) announced today that Melanie J. Dressel, President and Chief Executive Officer, is scheduled to present at the D.A. Davidson & Co. 14th Annual Financial Services Conference in Seattle, Washington. The Columbia Banking System presentation is scheduled for Thursday, May 10, 2012, at 8:00 a.m. PDT ( 11:00 a.m. EDT). The webcast of the presentation can be accessed through the D.A. Davidson presentation link at http://wsw.com/webcast/dadco23/colb/or by visiting www.columbiabank.com and clicking on the D.A. Davidson Financial Conference link. About Columbia Headquartered in Tacoma, Washington, Columbia Banking System, Inc. is the holding Company of Columbia State Bank, a Washington state-chartered full-service commercial bank which was again awarded one of Seattle Business Magazine's 100 Best Companies to Work For 2011 and was designated one of Puget Sound Business Journal's " Washington's Best Workplaces 2011." Columbia Banking System has 102 banking offices, including 77 branches in Washington State and 25 branches in Oregon. Columbia Bank does business under the Bank of Astoria name in Astoria, Warrenton, Seaside, Cannon Beach, Manzanita and Tillamook in Oregon. More information about Columbia can be found on its website at www.columbiabank.com. Note Regarding Forward-Looking Statements This news release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, which can be identified by words such as "may," "expected," "anticipate," "continue," or other comparable words. In addition, all statements other than statements of historical facts that address activities that Columbia expects or anticipates will or may occur in the future are forward-looking statements. Readers are encouraged to read the SEC reports of Columbia, particularly its form 10-K for the Fiscal Year ended December 31, 2011, for meaningful cautionary language discussing why actual results may vary materially from those anticipated by management. Contact: Jo Anne Coy; Vice President: Corporate Communications,Investor & Community Relations 253-305-1965 SOURCE Columbia Banking System, Inc.