City · Wisconsin · United States
Mason, WI — ZIP codes
1 ZIP code · Bayfield County
- City
- Mason
- County
- Bayfield
- State
- Wisconsin
- Country
- United States
- Postal code
- 54856Single source
- Coordinates
- 46.4399, -91.1318 View on OpenStreetMap
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 54856 | Mason | 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. Last generated : 2026-08-21. Report an error.