| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Nicolet National Bank | Bank | 1 | $215.7M | 34.27% |
| 2 | Bank Iowa | Bank | 2 | $158.1M | 25.12% |
| 3 | TruBank | Bank | 1 | $71.1M | 11.30% |
| 4 | Twin Cedars Bank | Bank | 1 | $44.2M | 7.03% |
| 5 | Community 1St Credit Union | Credit union | 1 | $40.9M* | 6.50% |
| 6 | Great Southern Bank | Bank | 1 | $36.4M | 5.78% |
| 7 | First State Bank | Bank | 1 | $32.6M | 5.17% |
| 8 | Leighton State Bank | Bank | 1 | $30.4M | 4.83% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $629.5M | 8 | 9 | Nicolet National Bank | 34.3% | 2,108 |
| 2025 | $624.3M | 8 | 10 | Midwestone Bank | 37.3% | 2,275 |
| 2024 | $617.6M | 8 | 11 | Midwestone Bank | 37.2% | 2,184 |
| 2023 | $613.6M | 8 | 11 | Midwestone Bank | 36.6% | 2,131 |
| 2022 | $660.2M | 8 | 11 | Midwestone Bank | 39.8% | 2,326 |
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.