Every FDIC-insured bank branch in Marin County, California as of June 30, 2025. County land area: 520 square miles, 12.9 branches per 100 sq mi.
| Institution | Branches | Deposits |
|---|---|---|
| Wells Fargo Bank, National Association | 11 | $3.02B |
| Bank of Marin | 10 | $1.69B |
| Westamerica Bank | 10 | $801.7M |
| JPMorgan Chase Bank, National Association | 8 | $2.52B |
| Bank of America, National Association | 6 | $2.15B |
| U.S. Bank National Association | 4 | $555.8M |
| Citibank, National Association | 3 | $502.0M |
| BMO Bank National Association | 2 | $138.8M |
| Umpqua Bank | 2 | $176.2M |
| First Federal Savings and Loan Association of San Rafael | 2 | $82.0M |
| Poppy Bank | 2 | $308.3M |
| Mechanics Bank | 1 | $100.9M |
| Washington Federal Bank | 1 | $494.8M |
| Heritage Bank of Commerce | 1 | $170.1M |
| EverBank, National Association | 1 | $46.3M |
| Citizens Bank, National Association | 1 | $2.06B |
| Exchange Bank | 1 | $0K |
| The Northern Trust Company | 1 | $68.1M |