City · Iowa · United States
Mason City, IA — ZIP codes
2 ZIP codes · Cerro Gordo County
- City
- Mason City
- County
- Cerro Gordo
- State
- Iowa
- Country
- United States
- Postal codes
- 5040150402Single source
- Coordinates
- 43.1499, -93.1954 View on OpenStreetMap
ZIP codes (2)
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 · census-acs5. Last generated : 2026-08-21. Report an error.