Banks in Napa County, California
32 active bank branches operated by 13 institutions, per FDIC records.
Active branches
32
Banks present
13
Deposits (2025)
$4.3B
Closings since 2020
13
3 openings
Largest banks by deposits in Napa County (2025)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Wells Fargo | $782M | 18.1% | 4 |
| Chase Bank | $782M | 18.1% | 3 |
| Bank of America | $752M | 17.5% | 3 |
| Columbia Bank | $404M | 9.4% | 3 |
| Bank of Marin | $322M | 7.5% | 2 |
| Westamerica Bank | $300M | 7% | 6 |
| BMO Bank | $292M | 6.8% | 4 |
| Mechanics Bank | $210M | 4.9% | 2 |
| Poppy Bank | $189M | 4.4% | 1 |
| U.S. Bank | $182M | 4.2% | 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.