| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | First Interstate Bank | Bank | 3 | $825.1M | 17.68% |
| 2 | Glacier Bank | Bank | 6 | $814.6M | 17.46% |
| 3 | Clearwater Federal Credit Union | Credit union | 6 | $488.1M* | 10.46% |
| 4 | Stockman Bank of Montana | Bank | 3 | $440.1M | 9.43% |
| 5 | TrailWest Bank | Bank | 9 | $430.1M | 9.22% |
| 6 | Wells Fargo Bank, National Association | Bank | 2 | $370.4M | 7.94% |
| 7 | U.S. Bank National Association | Bank | 2 | $341.5M | 7.32% |
| 8 | Bank of Montana | Bank | 1 | $271.7M | 5.82% |
| 9 | Mountain America Federal Credit Union | Credit union | 1 | $180.8M* | 3.87% |
| 10 | Park Side Financial Credit Union | Credit union | 3 | $127.0M* | 2.72% |
| 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 |
|---|---|---|---|---|---|---|
| 2025 | $4.67B | 17 | 48 | First Interstate Bank | 17.7% | 1,087 |
| 2024 | $4.65B | 18 | 50 | Glacier Bank | 18.1% | 1,118 |
| 2023 | $4.81B | 18 | 51 | First Interstate Bank | 18.8% | 1,130 |
| 2022 | $5.04B | 18 | 50 | First Interstate Bank | 19.5% | 1,203 |
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.