Every FDIC-insured bank branch in Rock County, Wisconsin as of June 30, 2025. County land area: 718 square miles, 4.9 branches per 100 sq mi.
| Institution | Branches | Deposits |
|---|---|---|
| The First National Bank and Trust Company | 7 | $578.8M |
| BMO Bank National Association | 5 | $532.2M |
| First Mid Bank & Trust, National Association | 3 | $424.7M |
| Bank of Milton | 2 | $181.8M |
| Johnson Bank | 2 | $442.8M |
| The Bank of Brodhead | 2 | $82.8M |
| Associated Bank, National Association | 2 | $380.4M |
| JPMorgan Chase Bank, National Association | 2 | $266.8M |
| First Community Bank | 1 | $138.7M |
| The Greenwood's State Bank | 1 | $45.7M |
| Farmers and Merchants Union Bank | 1 | $21.7M |
| Lake Ridge Bank | 1 | $139.4M |
| CBI Bank & Trust | 1 | $33.6M |
| Town Bank, National Association | 1 | $64.5M |
| Sauk Valley Bank & Trust Company | 1 | $2.8M |
| Old National Bank | 1 | $90.7M |
| PremierBank | 1 | $23.3M |
| U.S. Bank National Association | 1 | $48.7M |