| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | The First National Bank in Amboy | Bank | 4 | $241.4M | 25.16% |
| 2 | Midland States Bank | Bank | 1 | $200.6M | 20.91% |
| 3 | Sterling Federal Bank, F.S.B. | Bank | 2 | $126.6M | 13.19% |
| 4 | Sauk Valley Bank & Trust Company | Bank | 2 | $126.5M | 13.18% |
| 5 | Numark Credit Union | Credit union | 2 | $112.3M* | 11.70% |
| 6 | U.S. Bank National Association | Bank | 1 | $63.0M | 6.57% |
| 7 | First State Bank | Bank | 1 | $38.3M | 3.99% |
| 8 | Community State Bank of Rock Falls | Bank | 1 | $30.7M | 3.20% |
| 9 | First Federal Savings Bank | Bank | 1 | $12.4M | 1.29% |
| 10 | Ottawa Hiway Credit Union | Credit union | 1 | $4.5M* | 0.47% |
| 2 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 | $959.7M | 12 | 18 | The First National Bank in Amboy | 25.2% | 1,626 |
| 2025 | $960.4M | 12 | 18 | The First National Bank in Amboy | 24.1% | 1,612 |
| 2024 | $965.5M | 12 | 18 | Midland States Bank | 26.0% | 1,740 |
| 2023 | $969.0M | 12 | 18 | Midland States Bank | 24.0% | 1,627 |
| 2022 | $928.7M | 12 | 20 | Midland States Bank | 25.8% | 1,726 |
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.