Every FDIC-insured bank branch in Winnebago County, Wisconsin as of June 30, 2025. County land area: 435 square miles, 6.4 branches per 100 sq mi.
| Institution | Branches | Deposits |
|---|---|---|
| Associated Bank, National Association | 5 | $544.3M |
| BMO Bank National Association | 3 | $200.6M |
| Fortifi Bank | 3 | $95.8M |
| Nicolet National Bank | 3 | $442.0M |
| Old National Bank | 2 | $142.8M |
| JPMorgan Chase Bank, National Association | 2 | $218.1M |
| U.S. Bank National Association | 2 | $208.9M |
| National Exchange Bank and Trust | 1 | $21.9M |
| Horicon Bank | 1 | $64.0M |
| Premier Community Bank | 1 | $25.3M |
| North Shore Bank | 1 | $27.6M |
| Fox Valley Savings Bank | 1 | $39.7M |
| West Pointe Bank | 1 | $263.8M |
| Wells Fargo Bank, National Association | 1 | $56.9M |
| Bank First, N.A. | 1 | $116.5M |