| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Blackhawk Community Credit Union | Credit union | 7 | $589.0M* | 11.99% |
| 2 | BMO Bank National Association | Bank | 5 | $522.2M | 10.63% |
| 3 | Johnson Bank | Bank | 2 | $495.5M | 10.09% |
| 4 | Bank First, N.A. | Bank | 4 | $480.7M | 9.79% |
| 5 | Associated Bank, National Association | Bank | 2 | $375.8M | 7.65% |
| 6 | First Mid Bank & Trust, National Association | Bank | 3 | $359.0M | 7.31% |
| 7 | Advia Credit Union | Credit union | 3 | $294.7M* | 6.00% |
| 8 | JPMorgan Chase Bank, National Association | Bank | 2 | $267.9M | 5.45% |
| 9 | Educators Credit Union | Credit union | 2 | $257.2M* | 5.24% |
| 10 | Bank of Milton | Bank | 2 | $193.7M | 3.94% |
| 15 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 | $4.91B | 25 | 52 | Blackhawk Community Credit Union | 12.0% | 719 |
| 2025 | $4.88B | 25 | 53 | The First National Bank And Trust Company | 11.9% | 750 |
| 2024 | $4.57B | 24 | 49 | BMO Bank National Association | 11.8% | 745 |
| 2023 | $4.65B | 23 | 48 | Blackhawk Community Credit Union | 12.7% | 772 |
| 2022 | $4.66B | 23 | 48 | Blackhawk Community Credit Union | 12.6% | 789 |
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.