Every FDIC-insured bank branch in Thurston County, Washington as of June 30, 2025. County land area: 723 square miles, 6.5 branches per 100 sq mi.
| Institution | Branches | Deposits |
|---|---|---|
| Olympia Federal Savings and Loan Association | 7 | $669.8M |
| KeyBank National Association | 6 | $431.6M |
| Timberland Bank | 6 | $518.6M |
| Umpqua Bank | 5 | $408.0M |
| Heritage Bank | 4 | $784.5M |
| Bank of America, National Association | 3 | $642.0M |
| Wells Fargo Bank, National Association | 3 | $361.1M |
| JPMorgan Chase Bank, National Association | 3 | $479.4M |
| Washington Federal Bank | 2 | $65.6M |
| 1st Security Bank of Washington | 2 | $120.5M |
| U.S. Bank National Association | 2 | $255.8M |
| First-Citizens Bank & Trust Company | 1 | $169.9M |
| Bank of the Pacific | 1 | $1.2M |
| HomeStreet Bank | 1 | $96.4M |
| Commencement Bank | 1 | $173.5M |