In which county is ZIP code 48059 located?

ZIP 48059 is listed under St. Clair, MI.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 48059: Fort Gratiot, MI

ZIP: 48059

County: St. Clair

Coordinates: 43.08880, -82.49050

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Fort Gratiot, MI postal area 48059. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Fort Gratiot
ZIP Code	48059
County	St. Clair
State	MI
Latitude / Longitude	43.08880, -82.49050
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 48059 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 48059 are listed as 43.08880 / -82.49050, useful for GPS and service checks in and around Fort Gratiot, MI.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 48059 for mail delivery and general location reference in St. Clair, MI.

This ZIP may extend beyond the city core into nearby communities within St. Clair.

Related ZIP Codes (Nearby)

Explore other postal codes near Fort Gratiot within MI.

Frequently Asked Questions

What is the primary city for ZIP code 48059?

The primary city for this ZIP code is Fort Gratiot, located in MI.

In which county is 48059 located?

ZIP code 48059 is situated within St. Clair, MI.

What are the coordinates for 48059?

The approximate center point is 43.08880 (Latitude) and -82.49050 (Longitude).

Is ZIP code 48059 active?

This page lists ZIP 48059 as Listed based on the latest refresh date shown above.

Does ZIP 48059 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08