Banks in Turner County, South Dakota
8 active bank branches operated by 5 institutions, per FDIC records.
Active branches
8
Banks present
5
Deposits (2026)
$329M
Closings since 2020
0
1 openings
Largest banks by deposits in Turner County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Rivers Edge Bank | $127M | 38.4% | 2 |
| Security Bank Midwest | $76M | 23.1% | 2 |
| Merchants State Bank | $74M | 22.5% | 2 |
| One American Bank | $35M | 10.7% | 1 |
| First Savings Bank | $17M | 5.2% | 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.