Banks in San Juan County, Washington
8 active bank branches operated by 5 institutions, per FDIC records.
Active branches
8
Banks present
5
Deposits (2026)
$641M
Closings since 2020
0
1 openings
Largest banks by deposits in San Juan County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Banner Bank | $282M | 44% | 3 |
| KeyBank | $111M | 17.3% | 2 |
| WaFd Bank | $107M | 16.6% | 1 |
| Wells Fargo | $84M | 13.2% | 1 |
| Heritage Bank | $57M | 8.9% | 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.