| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Glacier Bank | Bank | 5 | $706.5M | 21.35% |
| 2 | Opportunity Bank of Montana | Bank | 5 | $486.6M | 14.71% |
| 3 | First Interstate Bank | Bank | 3 | $465.9M | 14.08% |
| 4 | Stockman Bank of Montana | Bank | 3 | $342.4M | 10.35% |
| 5 | Wells Fargo Bank, National Association | Bank | 2 | $309.8M | 9.36% |
| 6 | U.S. Bank National Association | Bank | 1 | $263.9M | 7.98% |
| 7 | Rocky Mountain Credit Union | Credit union | 3 | $157.1M* | 4.75% |
| 8 | Intrepid Credit Union | Credit union | 4 | $153.5M* | 4.64% |
| 9 | Ascent Bank | Bank | 2 | $92.4M | 2.79% |
| 10 | Clearwater Federal Credit Union | Credit union | 1 | $85.9M* | 2.60% |
| 9 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 | $3.31B | 19 | 39 | Glacier Bank | 21.4% | 1,196 |
| 2025 | $3.06B | 19 | 38 | Glacier Bank | 20.3% | 1,161 |
| 2024 | $2.85B | 18 | 38 | Glacier Bank | 19.7% | 1,192 |
| 2023 | $2.86B | 18 | 38 | Glacier Bank | 19.7% | 1,174 |
| 2022 | $381.2M | 4 | 8 | Intrepid Credit Union | 52.9% | 4,527 |
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.