| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Glacier Bank | Bank | 3 | $355.3M | 32.05% |
| 2 | Whitefish Credit Union Association Credit Union | Credit union | 1 | $197.1M* | 17.78% |
| 3 | First Interstate Bank | Bank | 1 | $167.5M | 15.11% |
| 4 | Valley Bank of Ronan | Bank | 4 | $164.2M | 14.81% |
| 5 | Eagle Bank | Bank | 1 | $157.7M | 14.23% |
| 6 | Park Side Financial Credit Union | Credit union | 1 | $43.8M* | 3.95% |
| 7 | Unity Bank | Bank | 1 | $22.9M | 2.07% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $1.11B | 7 | 12 | Glacier Bank | 32.0% | 2,013 |
| 2025 | $1.08B | 7 | 12 | Glacier Bank | 31.0% | 2,043 |
| 2024 | $984.2M | 6 | 12 | Glacier Bank | 31.2% | 2,180 |
| 2023 | $951.1M | 6 | 13 | Glacier Bank | 32.1% | 2,258 |
| 2022 | $960.8M | 6 | 14 | Glacier Bank | 32.6% | 2,287 |
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