| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Idaho Central Credit Union | Credit union | 28 | $5.27B* | 18.71% |
| 2 | U.S. Bank National Association | Bank | 24 | $4.08B | 14.50% |
| 3 | Wells Fargo Bank, National Association | Bank | 15 | $3.45B | 12.26% |
| 4 | JPMorgan Chase Bank, National Association | Bank | 12 | $1.32B | 4.67% |
| 5 | First Interstate Bank | Bank | 13 | $1.11B | 3.95% |
| 6 | Zions Bancorporation, N.A. | Bank | 7 | $1.11B | 3.94% |
| 7 | KeyBank National Association | Bank | 11 | $1.06B | 3.75% |
| 8 | Capital Educators Federal Credit Union | Credit union | 12 | $1.05B* | 3.73% |
| 9 | Washington Trust Bank | Bank | 6 | $987.4M | 3.51% |
| 10 | Mountain America Federal Credit Union | Credit union | 5 | $903.8M* | 3.21% |
| 36 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 |
|---|---|---|---|---|---|---|
| 2025 | $28.16B | 46 | 245 | Idaho Central Credit Union | 18.7% | 859 |
| 2024 | $25.65B | 42 | 234 | Idaho Central Credit Union | 17.6% | 887 |
| 2023 | $27.08B | 40 | 237 | Idaho Central Credit Union | 22.6% | 1,059 |
| 2022 | $28.17B | 36 | 229 | Idaho Central Credit Union | 21.5% | 1,060 |
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.