| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Hills Bank and Trust Company | Bank | 9 | $2.40B | 34.05% |
| 2 | GreenState Credit Union | Credit union | 6 | $1.54B* | 21.81% |
| 3 | Nicolet National Bank | Bank | 7 | $898.1M | 12.74% |
| 4 | U.S. Bank National Association | Bank | 4 | $391.5M | 5.55% |
| 5 | West Bank | Bank | 1 | $369.0M | 5.23% |
| 6 | Veridian Credit Union | Credit union | 1 | $241.9M* | 3.43% |
| 7 | Wells Fargo Bank, National Association | Bank | 2 | $235.2M | 3.34% |
| 8 | Collins Community Credit Union | Credit union | 1 | $147.3M* | 2.09% |
| 9 | Central State Bank | Bank | 2 | $131.8M | 1.87% |
| 10 | Dupaco Community Credit Union | Credit union | 1 | $127.7M* | 1.81% |
| 12 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 | $7.05B | 22 | 49 | Hills Bank and Trust Company | 34.0% | 1,897 |
| 2025 | $6.88B | 21 | 48 | Hills Bank and Trust Company | 33.0% | 1,932 |
| 2024 | $6.82B | 21 | 48 | Hills Bank and Trust Company | 32.2% | 1,922 |
| 2023 | $6.98B | 21 | 49 | Hills Bank and Trust Company | 31.7% | 1,941 |
| 2022 | $6.91B | 19 | 48 | Hills Bank and Trust Company | 33.5% | 2,020 |
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.