Every FDIC-insured bank branch in Whiteside County, Illinois as of June 30, 2025. County land area: 684 square miles, 4.1 branches per 100 sq mi.
| Institution | Branches | Deposits |
|---|---|---|
| Sauk Valley Bank & Trust Company | 5 | $451.0M |
| Community State Bank of Rock Falls | 4 | $249.5M |
| Sterling Federal Bank, F.S.B. | 4 | $221.9M |
| Midland States Bank | 2 | $187.1M |
| Central Bank Illinois | 2 | $102.2M |
| Morton Community Bank | 2 | $99.9M |
| TBK BANK, SSB | 2 | $58.2M |
| Farmers National Bank | 2 | $350.3M |
| First State Bank of Forrest | 1 | $22.9M |
| First Federal Savings Bank | 1 | $14.1M |
| U.S. Bank National Association | 1 | $88.0M |
| Fifth Third Bank, National Association | 1 | $81.3M |
| Peoples National Bank of Kewanee | 1 | $14.6M |