In which county is ZIP code 48603 located?

ZIP 48603 is listed under Saginaw, MI.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 48603: Saginaw, MI

ZIP: 48603

County: Saginaw

Coordinates: 43.46310, -84.02970

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Explore detailed information for ZIP code 48603 in Saginaw, MI. We include verified county details for Saginaw plus key geographic references used for mapping and logistics.

Primary City	Saginaw
ZIP Code	48603
County	Saginaw
State	MI
Latitude / Longitude	43.46310, -84.02970
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 48603 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 48603 is commonly represented around 43.46310, -84.02970. These coordinates help identify the general area within Saginaw, MI.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 48603 for mail delivery and general location reference in Saginaw, MI.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Saginaw within MI.

Frequently Asked Questions

What is the primary city for ZIP code 48603?

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

In which county is 48603 located?

ZIP code 48603 is situated within Saginaw, MI.

What are the coordinates for 48603?

The approximate center point is 43.46310 (Latitude) and -84.02970 (Longitude).

Is ZIP code 48603 active?

This page lists ZIP 48603 as Listed based on the latest refresh date shown above.

Does ZIP 48603 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