| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Idaho Central Credit Union | Credit union | 28 | $5.67B* | 18.75% |
| 2 | U.S. Bank National Association | Bank | 24 | $4.12B | 13.63% |
| 3 | Wells Fargo Bank, National Association | Bank | 15 | $3.78B | 12.49% |
| 4 | JPMorgan Chase Bank, National Association | Bank | 12 | $1.45B | 4.79% |
| 5 | Zions Bancorporation, N.A. | Bank | 7 | $1.30B | 4.28% |
| 6 | First Interstate Bank | Bank | 13 | $1.14B | 3.78% |
| 7 | KeyBank National Association | Bank | 11 | $1.11B | 3.66% |
| 8 | Washington Trust Bank | Bank | 6 | $1.10B | 3.63% |
| 9 | D. L. Evans Bank | Bank | 11 | $977.0M | 3.23% |
| 10 | Idaho First Bank | Bank | 3 | $961.5M | 3.18% |
| 37 more institutions, year-over-year share and branch changes with Pro →$29/mo, cancel any time. | |||||
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $30.24B | 47 | 248 | Idaho Central Credit Union | 18.8% | 841 |
| 2025 | $28.16B | 46 | 245 | Idaho Central Credit Union | 18.7% | 859 |
| 2024 | $25.85B | 43 | 238 | Idaho Central Credit Union | 17.5% | 874 |
| 2023 | $27.37B | 41 | 241 | Idaho Central Credit Union | 22.9% | 1,060 |
| 2022 | $28.81B | 39 | 239 | Idaho Central Credit Union | 21.5% | 1,034 |
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.