| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Glacier Bank | Bank | 9 | $1.87B | 34.18% |
| 2 | First Interstate Bank | Bank | 4 | $684.0M | 12.50% |
| 3 | Stockman Bank of Montana | Bank | 5 | $595.6M | 10.88% |
| 4 | Wells Fargo Bank, National Association | Bank | 2 | $453.5M | 8.29% |
| 5 | American Bank | Bank | 3 | $343.1M | 6.27% |
| 6 | U.S. Bank National Association | Bank | 2 | $308.6M | 5.64% |
| 7 | Opportunity Bank of Montana | Bank | 3 | $240.1M | 4.39% |
| 8 | Manhattan Bank | Bank | 4 | $231.8M | 4.24% |
| 9 | Rocky Mountain Credit Union | Credit union | 3 | $146.5M* | 2.68% |
| 10 | Sky Federal Credit Union | Credit union | 3 | $87.8M* | 1.60% |
| 12 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 | $5.47B | 22 | 51 | Glacier Bank | 34.2% | 1,640 |
| 2024 | $5.12B | 21 | 50 | Glacier Bank | 33.2% | 1,620 |
| 2023 | $5.08B | 19 | 48 | Glacier Bank | 32.0% | 1,552 |
| 2022 | $433.1M | 5 | 9 | Rocky Mountain Credit Union | 36.1% | 2,413 |
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.