ZIP code · Fort Gratiot · Michigan · United States
ZIP code 48059 — Fort Gratiot
ZIP code 48059 serves Fort Gratiot, Michigan.
- Postal code
- 48059Single source Value from one source, not cross-checked.
- City
- Fort Gratiot
- County
- St. Clair
- State
- Michigan
- Country
- United States
- Coordinates
- 43.0888, -82.4905 — precision estimated (postal-area centroid)
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About this page
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. Data generated on 2026-08-21. Methodology · Report an error on this page