| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Bank First, N.A. | Bank | 1 | $225.8M | 15.41% |
| 2 | River Bank | Bank | 3 | $216.1M | 14.75% |
| 3 | CCFBank National Association | Bank | 2 | $202.9M | 13.84% |
| 4 | 1St Community Credit Union | Credit union | 3 | $191.1M* | 13.04% |
| 5 | Bank of Cashton | Bank | 1 | $127.0M | 8.67% |
| 6 | Tomah Area Credit Union | Credit union | 2 | $108.4M* | 7.40% |
| 7 | R.I.A. Federal Credit Union | Credit union | 2 | $106.5M* | 7.26% |
| 8 | Westby Co-Op Credit Union | Credit union | 1 | $70.2M* | 4.79% |
| 9 | Ergo Bank | Bank | 3 | $70.0M | 4.78% |
| 10 | State Bank Financial | Bank | 1 | $62.6M | 4.27% |
| 3 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 |
|---|---|---|---|---|---|---|
| 2026 | $1.47B | 13 | 22 | Bank First, N.A. | 15.4% | 1,079 |
| 2025 | $1.43B | 13 | 22 | Bank First, N.A. | 16.9% | 1,125 |
| 2024 | $1.42B | 13 | 22 | River Bank | 17.3% | 1,182 |
| 2023 | $1.46B | 13 | 22 | River Bank | 16.9% | 1,126 |
| 2022 | $1.44B | 13 | 21 | River Bank | 18.9% | 1,142 |
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.