| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | First Savings Bank | Bank | 2 | $88.3M | 42.46% |
| 2 | Norstar Federal Credit Union | Credit union | 2 | $64.3M* | 30.94% |
| 3 | Dacotah Bank | Bank | 1 | $27.7M | 13.33% |
| 4 | Great Plains Bank | Bank | 1 | $27.6M | 13.27% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $207.9M | 4 | 6 | First Savings Bank | 42.5% | 3,114 |
| 2025 | $197.9M | 4 | 6 | First Savings Bank | 41.8% | 3,085 |
| 2024 | $197.1M | 4 | 6 | First Savings Bank | 44.0% | 3,156 |
| 2023 | $203.2M | 4 | 6 | First Savings Bank | 44.4% | 3,259 |
| 2022 | $208.3M | 4 | 6 | First Savings Bank | 57.0% | 3,926 |
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.