Every FDIC-insured bank branch in St. Croix County, Wisconsin as of June 30, 2025. County land area: 722 square miles, 3.0 branches per 100 sq mi.
| Institution | Branches | Deposits |
|---|---|---|
| Hiawatha National Bank | 3 | $396.0M |
| Associated Bank, National Association | 3 | $357.8M |
| First National Community Bank | 3 | $266.7M |
| Citizens State Bank | 3 | $312.7M |
| First State Bank and Trust | 1 | $33.7M |
| Security Financial Bank | 1 | $43.6M |
| MidWestOne Bank | 1 | $85.6M |
| BMO Bank National Association | 1 | $41.2M |
| Wells Fargo Bank, National Association | 1 | $134.0M |
| Old National Bank | 1 | $159.9M |
| Pillar Bank | 1 | $101.5M |
| The First National Bank of River Falls | 1 | $0K |
| JPMorgan Chase Bank, National Association | 1 | $5.6M |
| U.S. Bank National Association | 1 | $173.6M |