| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Hills Bank and Trust Company | Bank | 12 | $2.75B | 34.01% |
| 2 | GreenState Credit Union | Credit union | 6 | $1.54B* | 19.02% |
| 3 | Nicolet National Bank | Bank | 7 | $898.1M | 11.11% |
| 4 | Washington State Bank | Bank | 2 | $401.7M | 4.97% |
| 5 | U.S. Bank National Association | Bank | 4 | $391.5M | 4.84% |
| 6 | West Bank | Bank | 1 | $369.0M | 4.57% |
| 7 | Veridian Credit Union | Credit union | 1 | $241.9M* | 2.99% |
| 8 | Wells Fargo Bank, National Association | Bank | 2 | $235.2M | 2.91% |
| 9 | Collins Community Credit Union | Credit union | 1 | $147.3M* | 1.82% |
| 10 | Central State Bank | Bank | 2 | $131.8M | 1.63% |
| 16 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 | $8.08B | 26 | 62 | Hills Bank and Trust Company | 34.0% | 1,747 |
| 2025 | $7.91B | 25 | 61 | Hills Bank and Trust Company | 33.0% | 1,757 |
| 2024 | $7.84B | 25 | 61 | Hills Bank and Trust Company | 32.3% | 1,745 |
| 2023 | $7.98B | 26 | 62 | Hills Bank and Trust Company | 31.8% | 1,753 |
| 2022 | $7.90B | 24 | 61 | Hills Bank and Trust Company | 33.3% | 1,823 |
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.