| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Old National Bank | Bank | 4 | $407.2M | 20.75% |
| 2 | Grundy Bank | Bank | 3 | $363.3M | 18.51% |
| 3 | Busey Bank | Bank | 2 | $257.9M | 13.14% |
| 4 | Financial Plus Credit Union | Credit union | 2 | $208.2M* | 10.61% |
| 5 | BMO Bank National Association | Bank | 2 | $195.7M | 9.97% |
| 6 | JPMorgan Chase Bank, National Association | Bank | 1 | $119.0M | 6.06% |
| 7 | Midland States Bank | Bank | 1 | $104.5M | 5.32% |
| 8 | OSB Community Bank | Bank | 1 | $58.6M | 2.99% |
| 9 | Streator Onized Credit Union | Credit union | 1 | $50.6M* | 2.58% |
| 10 | Heartland Bank and Trust Company | Bank | 1 | $44.3M | 2.26% |
| 4 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 | $1.96B | 14 | 22 | Old National Bank | 20.8% | 1,259 |
| 2025 | $1.95B | 15 | 23 | Old National Bank | 18.1% | 1,110 |
| 2024 | $1.83B | 15 | 23 | Old National Bank | 19.4% | 1,077 |
| 2023 | $1.86B | 15 | 23 | Old National Bank | 19.0% | 1,139 |
| 2022 | $1.94B | 15 | 23 | Old National Bank | 24.8% | 1,234 |
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.