City · Wisconsin · United States
Ontario, WI — ZIP codes
1 ZIP code · Vernon County
- City
- Ontario
- County
- Vernon
- State
- Wisconsin
- Country
- United States
- Postal code
- 54651Single source
- Coordinates
- 43.7172, -90.6205 View on OpenStreetMap
- Area code
- 608
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 54651 | Ontario | 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.