Banks in Colusa County, California
6 active bank branches operated by 5 institutions, per FDIC records.
Active branches
6
Banks present
5
Deposits (2026)
$620M
Closings since 2020
1
0 openings
Largest banks by deposits in Colusa County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Tri Counties Bank | $192M | 30.9% | 1 |
| Columbia Bank | $170M | 27.3% | 2 |
| U.S. Bank | $122M | 19.7% | 1 |
| Wells Fargo | $108M | 17.3% | 1 |
| First Northern Bank of Dixon | $29M | 4.7% | 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.