| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Dacotah Bank | Bank | 2 | $163.2M | 75.13% |
| 2 | Dakota Plains Federal Credit Union | Credit union | 2 | $30.3M* | 13.96% |
| 3 | BMO Bank National Association | Bank | 1 | $23.7M | 10.91% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $217.2M | 3 | 5 | Dacotah Bank | 75.1% | 5,958 |
| 2025 | $204.5M | 3 | 5 | Dacotah Bank | 74.0% | 5,812 |
| 2024 | $186.6M | 3 | 5 | Dacotah Bank | 71.8% | 5,553 |
| 2023 | $174.9M | 3 | 5 | Dacotah Bank | 68.7% | 5,218 |
| 2022 | $179.5M | 3 | 5 | Dacotah Bank | 67.3% | 5,061 |
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.