| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Stockman Bank of Montana | Bank | 1 | $213.7M | 49.56% |
| 2 | The Bank of Commerce | Bank | 1 | $132.2M | 30.66% |
| 3 | Pioneer State Bank | Bank | 1 | $48.8M | 11.31% |
| 4 | Southwest Montana Community Federal Credit Union | Credit union | 1 | $36.5M* | 8.47% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $431.2M | 4 | 4 | Stockman Bank of Montana | 49.6% | 3,596 |
| 2025 | $342.4M | 3 | 3 | Stockman Bank of Montana | 54.2% | 4,255 |
| 2024 | $352.0M | 4 | 4 | Stockman Bank of Montana | 51.5% | 3,877 |
| 2023 | $326.0M | 4 | 4 | Stockman Bank of Montana | 53.6% | 4,181 |
| 2022 | $340.3M | 4 | 4 | Stockman Bank of Montana | 49.3% | 3,975 |
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.