Banks in San Luis Obispo County, California
55 active bank branches operated by 14 institutions, per FDIC records.
Active branches
55
Banks present
14
Deposits (2026)
$8.7B
Closings since 2020
20
3 openings
Largest banks by deposits in San Luis Obispo County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Chase Bank | $1.9B | 21.8% | 6 |
| Mechanics Bank | $1.5B | 17% | 12 |
| Wells Fargo | $1.3B | 14.5% | 5 |
| Columbia Bank | $1.1B | 12.9% | 8 |
| Bank of America | $998M | 11.5% | 3 |
| U.S. Bank | $528M | 6.1% | 4 |
| American Riviera Bank | $459M | 5.3% | 3 |
| Banc of California | $315M | 3.6% | 3 |
| UMB Bank | $221M | 2.6% | 3 |
| Bank of the Sierra | $197M | 2.3% | 3 |
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.