Banks in Brown County, South Dakota
16 active bank branches operated by 12 institutions, per FDIC records.
Active branches
16
Banks present
12
Deposits (2026)
$2.0B
Closings since 2020
1
2 openings
Largest banks by deposits in Brown County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Dacotah Bank | $862M | 43% | 3 |
| Plains Commerce Bank | $285M | 14.3% | 1 |
| Wells Fargo | $221M | 11.1% | 1 |
| First Interstate Bank | $189M | 9.4% | 2 |
| American Bank & Trust | $120M | 6% | 1 |
| BankNorth | $105M | 5.2% | 2 |
| U.S. Bank | $88M | 4.4% | 1 |
| Great Plains Bank | $49M | 2.5% | 1 |
| CorTrust Bank | $38M | 1.9% | 1 |
| The First National Bank of Frederick | $25M | 1.3% | 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.