Banks in St. Mary County, Louisiana
14 active bank branches operated by 6 institutions, per FDIC records.
Active branches
14
Banks present
6
Deposits (2025)
$1.3B
Closings since 2020
4
0 openings
Largest banks by deposits in St. Mary County (2025)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Hancock Whitney Bank | $440M | 32.6% | 2 |
| Patterson State Bank | $274M | 20.4% | 3 |
| M C Bank & Trust Company | $261M | 19.4% | 3 |
| The First National Bank of Jeanerette | $207M | 15.3% | 3 |
| Regions Bank | $84M | 6.2% | 2 |
| First Horizon Bank | $82M | 6.1% | 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.