| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Little Horn State Bank | Bank | 1 | $199.3M | 67.78% |
| 2 | First Interstate Bank | Bank | 1 | $93.9M | 31.95% |
| 3 | The Morning Star Federal Credit Union | Credit union | 1 | $778K* | 0.26% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2025 | $294.0M | 3 | 3 | Little Horn State Bank | 67.8% | 5,615 |
| 2024 | $249.0M | 3 | 3 | Little Horn State Bank | 60.9% | 5,219 |
| 2023 | $191.6M | 2 | 2 | Little Horn State Bank | 52.2% | 5,010 |
| 2022 | $164.1M | 2 | 2 | First Interstate Bank | 55.9% | 5,071 |
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.