| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Pioneer Federal Credit Union | Credit union | 5 | $210.1M* | 29.81% |
| 2 | Idaho Central Credit Union | Credit union | 1 | $202.5M* | 28.73% |
| 3 | U.S. Bank National Association | Bank | 2 | $89.1M | 12.64% |
| 4 | First Interstate Bank | Bank | 1 | $80.6M | 11.44% |
| 5 | Wells Fargo Bank, National Association | Bank | 1 | $79.6M | 11.29% |
| 6 | JPMorgan Chase Bank, National Association | Bank | 1 | $42.9M | 6.09% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $704.8M | 6 | 11 | Pioneer Federal Credit Union | 29.8% | 2,169 |
| 2025 | $680.5M | 6 | 11 | Pioneer Federal Credit Union | 29.8% | 2,133 |
| 2024 | $501.7M | 5 | 10 | Pioneer Federal Credit Union | 40.8% | 2,589 |
| 2023 | $515.5M | 5 | 11 | Pioneer Federal Credit Union | 43.5% | 2,734 |
| 2022 | $542.3M | 5 | 11 | Pioneer Federal Credit Union | 41.3% | 2,624 |
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.