Corporate Offices - Columbia Banking System, Inc.
                           1301 A Street, Suite 800 (98402)
                           PO Box 2156
                           Tacoma, WA. 98401-2156
                           253-305-1900 or 1-800-305-1905

Investor/Media Contact - JoAnne Coy, Vice President,
Columbia Banking System, Inc. ph - 253-305-1965, fx - 253-305-0854