| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Dacotah Bank | Bank | 2 | $151.3M | 73.98% |
| 2 | Dakota Plains Federal Credit Union | Credit union | 2 | $27.0M* | 13.21% |
| 3 | BMO Bank National Association | Bank | 1 | $26.2M | 12.81% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2025 | $204.5M | 3 | 5 | Dacotah Bank | 74.0% | 5,812 |
| 2024 | $186.6M | 3 | 5 | Dacotah Bank | 71.8% | 5,553 |
| 2023 | $175.6M | 3 | 5 | Dacotah Bank | 68.4% | 5,189 |
| 2022 | $151.8M | 2 | 4 | Dacotah Bank | 79.6% | 6,748 |
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.