Columbia State Bank

Columbia State Bank was established on August 16, 1993, in Longview, Washington. Originally named Columbia National Bank, the institution underwent several name changes and acquisitions as it expanded its operations. In March 2010, it changed its name to Columbia State Bank and acquired multiple banks through government-assisted mergers, including American Marine Bank and Columbia River Bank. Over the years, Columbia State Bank continued to grow by acquiring various financial institutions, including Panhandle State Bank in November 2014, Pacific Continental Bank in November 2017, and Merchants Bank of Commerce in October 2021. The bank moved its main office to 1301 A Street, Tacoma, Washington, in March 2020. On March 1, 2023, Columbia State Bank merged with and became part of Umpqua Bank, based in Roseburg, Oregon.

Below is a list of some important events in banks history, including mergers and acquisitions.

1993-08-16Institution established. Original name: Columbia State Bank.

1993-08-16Acquired Columbia National Bank in Longview, WA.

1994-03-11Acquired Columbia Savings Bank, A Federal Savings Bank in Bellevue, WA.

1997-12-02Acquired Bank of Fife in Fife, WA.

1997-12-02Acquired Cascade Community Bank in Auburn, WA.

2001-04-16Main Office moved to 1301 A Street, Tacoma, WA 98402.

2007-07-23Acquired Mt. Rainier National Bank in Enumclaw, WA.

2007-07-23Acquired Town Center Bank in Portland, OR.

2008-04-01Acquired Bank of Astoria in Astoria, OR.

2010-01-22Acquired Columbia River Bank in The Dalles, OR as part of a government assisted merger.

2010-01-29Acquired American Marine Bank in Bainbridge Island, WA as part of a government assisted merger.

2010-01-29Changed Institution Name to Columbia State Bank.

2010-02-01Changed Trust Powers to Full.

2011-05-20Acquired Summit Bank in Burlington, WA as part of a government assisted merger.

2011-05-27Acquired First Heritage Bank in Snohomish, WA as part of a government assisted merger.

2011-08-05Acquired Bank of Whitman in Colfax, WA as part of a government assisted merger.

2011-08-05Changed Institution Name to Columbia State Bank.

2013-04-01Acquired West Coast Bank in Lake Oswego, OR.

2014-11-01Acquired Panhandle State Bank in Sandpoint, ID.

2017-11-01Acquired Pacific Continental Bank in Eugene, OR.

2020-03-31Main Office moved to 1301 A St, Tacoma, WA 98402.

2021-10-01Acquired Merchants Bank of Commerce in Sacramento, CA.

2023-03-01Merged and became part of Umpqua Bank in Roseburg, OR.