| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Glacier Bank | Bank | 4 | $639.0M | 21.08% |
| 2 | First Interstate Bank | Bank | 3 | $465.9M | 15.37% |
| 3 | Opportunity Bank of Montana | Bank | 4 | $368.9M | 12.17% |
| 4 | Stockman Bank of Montana | Bank | 3 | $342.4M | 11.29% |
| 5 | Wells Fargo Bank, National Association | Bank | 2 | $309.8M | 10.22% |
| 6 | U.S. Bank National Association | Bank | 1 | $263.9M | 8.71% |
| 7 | Rocky Mountain Credit Union | Credit union | 3 | $157.1M* | 5.18% |
| 8 | Intrepid Credit Union | Credit union | 4 | $153.5M* | 5.06% |
| 9 | Ascent Bank | Bank | 2 | $92.4M | 3.05% |
| 10 | Clearwater Federal Credit Union | Credit union | 1 | $85.9M* | 2.83% |
| 7 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 | $3.03B | 17 | 34 | Glacier Bank | 21.1% | 1,211 |
| 2025 | $2.78B | 17 | 33 | Glacier Bank | 20.1% | 1,184 |
| 2024 | $2.60B | 15 | 33 | Glacier Bank | 21.6% | 1,285 |
| 2023 | $2.63B | 15 | 33 | Glacier Bank | 21.4% | 1,266 |
| 2022 | $2.62B | 15 | 33 | Glacier Bank | 23.4% | 1,342 |
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.