Banks in St. Martin County, Louisiana
14 active bank branches operated by 6 institutions, per FDIC records.
Active branches
14
Banks present
6
Deposits (2025)
$837M
Closings since 2020
2
0 openings
Largest banks by deposits in St. Martin County (2025)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Merchants & Marine Bank | $287M | 34.3% | 4 |
| Hancock Whitney Bank | $187M | 22.3% | 2 |
| Home Bank | $174M | 20.8% | 3 |
| b1BANK | $90M | 10.8% | 2 |
| First Horizon Bank | $49M | 5.9% | 1 |
| Community First Bank | $49M | 5.9% | 2 |
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.