| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Grasslands Federal Credit Union | Credit union | 1 | $60.3M* | 73.12% |
| 2 | Garfield County Bank | Bank | 1 | $18.0M | 21.84% |
| 3 | Fort Peck Community Federal Credit Union | Credit union | 1 | $4.2M* | 5.04% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $82.4M | 3 | 3 | Grasslands Federal Credit Union | 73.1% | 5,849 |
| 2025 | $77.3M | 3 | 3 | Grasslands Federal Credit Union | 69.0% | 5,346 |
| 2024 | $66.8M | 2 | 2 | Grasslands Federal Credit Union | 75.5% | 6,302 |
| 2023 | $78.9M | 2 | 2 | Grasslands Federal Credit Union | 76.4% | 6,395 |
| 2022 | $77.1M | 2 | 2 | Grasslands Federal Credit Union | 78.1% | 6,584 |
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.