ZIP Code 48340

48340 is one of Michigan's ZIP codes, delivering to addresses in Pontiac, Oakland County.

City: Pontiac
County: Oakland County
State: Michigan
Prefix: 483xx

Where this code sits

48340 is part of the 483xx range, the group of codes handled by one mail processing centre. Pontiac is served by 4 ZIP codes in total; the full list, with the county each falls in, is on the Pontiac page.

Pontiac Michigan ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 48340 delivers to without sharing its boundary.

ZIP codes nearest 48340

The ZIP codes whose reference points sit closest to 48340.
ZIP code	Distance	Delivers to
ZIP code 48342	1.7 mi	Pontiac, MI
ZIP code 48343	2.0 mi	Pontiac, MI
ZIP code 48326	2.7 mi	Auburn Hills, MI
ZIP code 48341	2.8 mi	Pontiac, MI
ZIP code 48328	3.7 mi	Waterford, MI
ZIP code 48330	3.8 mi	Drayton Plains, MI
ZIP code 48359	3.9 mi	Lake Orion, MI
ZIP code 48007	4.3 mi	Troy, MI

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 48340, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 48340. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.