Banks in Grant County, South Dakota
5 active bank branches operated by 5 institutions, per FDIC records.
Active branches
5
Banks present
5
Deposits (2026)
$403M
Closings since 2020
1
1 openings
Largest banks by deposits in Grant County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| First Bank & Trust | $219M | 54.4% | 1 |
| First Interstate Bank | $79M | 19.7% | 1 |
| Wells Fargo | $71M | 17.7% | 1 |
| Minnwest Bank | $18M | 4.4% | 1 |
| Frandsen Bank & Trust | $15M | 3.8% | 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.