In which county is ZIP code 48340 located?

ZIP 48340 is listed under Oakland County, MI.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 48340: Pontiac, MI

ZIP: 48340

County: Oakland County

Coordinates: 42.66800, -83.28930

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Pontiac, MI postal area 48340. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Pontiac
ZIP Code	48340
County	Oakland County
State	MI
Latitude / Longitude	42.66800, -83.28930
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 48340 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 48340 are listed as 42.66800 / -83.28930, useful for GPS and service checks in and around Pontiac, MI.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 48340 for mail delivery and general location reference in Oakland County, MI.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Pontiac.

Related ZIP Codes (Nearby)

Explore other postal codes near Pontiac within MI.

Frequently Asked Questions

What is the primary city for ZIP code 48340?

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

In which county is 48340 located?

ZIP code 48340 is situated within Oakland County, MI.

What are the coordinates for 48340?

The approximate center point is 42.66800 (Latitude) and -83.28930 (Longitude).

Is ZIP code 48340 active?

This page lists ZIP 48340 as Listed based on the latest refresh date shown above.

Does ZIP 48340 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