0001072613-00-000950 10-Q 2 20000930 20001103 COLUMBIA BANKING SYSTEM INC 0000887343 6035 911422237 WA 1231 10-Q 34 000-20288 752615 1102 BROADWAY PLAZA TACOMA WA 98402 2533051900 1102 BROADWAY PLAZA TACOMA WA 98402 10-Q 1 0001.txt COLUMBIA BANKING SYSTEM, INC. FORM 10-Q - 9/30/00 EX-27 2 0002.txt FINANCIAL DATA SCHEDULE