| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Associated Bank, National Association | Bank | 12 | $7.42B | 39.29% |
| 2 | Nicolet National Bank | Bank | 10 | $2.67B | 14.13% |
| 3 | Capital Credit Union | Credit union | 12 | $1.14B* | 6.03% |
| 4 | BMO Bank National Association | Bank | 8 | $1.09B | 5.79% |
| 5 | Fox Communities Credit Union | Credit union | 9 | $1.04B* | 5.52% |
| 6 | Bank First, N.A. | Bank | 3 | $595.1M | 3.15% |
| 7 | Community First Credit Union | Credit union | 3 | $592.3M* | 3.14% |
| 8 | Bank of Luxemburg | Bank | 7 | $534.5M | 2.83% |
| 9 | JPMorgan Chase Bank, National Association | Bank | 4 | $483.3M | 2.56% |
| 10 | Johnson Bank | Bank | 2 | $438.8M | 2.32% |
| 22 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 | $18.88B | 32 | 119 | Associated Bank, National Association | 39.3% | 1,900 |
| 2025 | $19.16B | 32 | 118 | Associated Bank, National Association | 39.0% | 1,920 |
| 2024 | $18.50B | 33 | 117 | Associated Bank, National Association | 39.5% | 1,957 |
| 2023 | $18.38B | 32 | 116 | Associated Bank, National Association | 39.0% | 1,920 |
| 2022 | $14.75B | 31 | 120 | Associated Bank, National Association | 25.3% | 1,181 |
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.