Banks in Marin County, California
69 active bank branches operated by 18 institutions, per FDIC records.
Active branches
69
Banks present
18
Deposits (2026)
$16.1B
Closings since 2020
26
6 openings
Largest banks by deposits in Marin County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Citizens Bank | $3.1B | 19.5% | 2 |
| Wells Fargo | $3.0B | 18.5% | 11 |
| Chase Bank | $2.7B | 16.7% | 8 |
| Bank of America | $2.1B | 13.4% | 6 |
| Bank of Marin | $1.8B | 11.3% | 10 |
| Westamerica Bank | $845M | 5.3% | 10 |
| U.S. Bank | $532M | 3.3% | 4 |
| Citibank | $493M | 3.1% | 3 |
| WaFd Bank | $413M | 2.6% | 1 |
| Citizens Business Bank | $230M | 1.4% | 1 |
Deposit location reflects the office to which deposits are reported and may not represent the residence of depositors.
Cities and towns
Transcribed from FDIC BankFind Suite active-location records and the annual Summary of Deposits. County assignment follows the FDIC branch record.