City · Wisconsin · United States
Lake Mills, WI — ZIP codes
1 ZIP code · Jefferson County
- City
- Lake Mills
- County
- Jefferson
- State
- Wisconsin
- Country
- United States
- Postal code
- 53551Single source
- Coordinates
- 43.0816, -88.9133 View on OpenStreetMap
- Area codes
- 920, 274
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 53551 | Lake Mills | Single source |
Sources and verification
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS). Last generated : 2026-08-21. Report an error.