| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Reliabank Dakota | Bank | 2 | $354.2M | 20.65% |
| 2 | Dacotah Bank | Bank | 1 | $249.4M | 14.54% |
| 3 | First Interstate Bank | Bank | 2 | $206.0M | 12.01% |
| 4 | Plains Commerce Bank | Bank | 1 | $163.8M | 9.55% |
| 5 | First PREMIER Bank | Bank | 3 | $163.4M | 9.53% |
| 6 | Wells Fargo Bank, National Association | Bank | 1 | $152.2M | 8.87% |
| 7 | American Bank & Trust | Bank | 1 | $130.6M | 7.61% |
| 8 | First Bank & Trust | Bank | 1 | $91.2M | 5.32% |
| 9 | Area Federal Credit Union | Credit union | 1 | $78.3M* | 4.56% |
| 10 | Dakotaland Federal Credit Union | Credit union | 1 | $48.0M* | 2.80% |
| 3 more institutions, year-over-year share and branch changes with Pro →$29/mo, cancel any time. | |||||
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2025 | $1.72B | 13 | 17 | Reliabank Dakota | 20.6% | 1,165 |
| 2024 | $1.62B | 12 | 17 | Reliabank Dakota | 24.1% | 1,346 |
| 2023 | $1.54B | 12 | 17 | Reliabank Dakota | 22.1% | 1,326 |
| 2022 | $1.70B | 12 | 17 | Reliabank Dakota | 22.9% | 1,440 |
Every institution above links to its profile — ratios, peer medians and this quarter’s change signals. Pro adds the full table, share movement and CSV export.