| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Isabella Bank | Bank | 3 | $168.2M | 31.01% |
| 2 | The Huntington National Bank | Bank | 2 | $151.3M | 27.89% |
| 3 | Members First Credit Union | Credit union | 2 | $138.9M* | 25.61% |
| 4 | Mercantile Bank | Bank | 1 | $84.1M | 15.49% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2025 | $542.6M | 4 | 8 | Isabella Bank | 31.0% | 2,635 |
| 2024 | $536.5M | 4 | 8 | Isabella Bank | 30.7% | 2,634 |
| 2023 | $525.5M | 4 | 8 | The Huntington National Bank | 29.3% | 2,643 |
| 2022 | $523.0M | 4 | 8 | The Huntington National Bank | 31.6% | 2,751 |
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.