ZIP Code 48820

48820 is one of Michigan's ZIP codes, delivering to addresses in Dewitt, Clinton County.

City: Dewitt
County: Clinton County
State: Michigan
Prefix: 488xx

Where this code sits

48820 is part of the 488xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Dewitt.

Dewitt Michigan ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 48820 delivers to without sharing its boundary.

517 Area code 517

ZIP codes nearest 48820

The ZIP codes whose reference points sit closest to 48820.
ZIP code	Distance	Delivers to
ZIP code 48906	5.6 mi	Lansing, MI
ZIP code 48808	6.5 mi	Bath, MI
ZIP code 48937	6.6 mi	Lansing, MI
ZIP code 48915	7.2 mi	Lansing, MI
ZIP code 48917	7.6 mi	Lansing, MI
ZIP code 48933	7.6 mi	Lansing, MI
ZIP code 48922	7.7 mi	Lansing, MI
ZIP code 48929	7.7 mi	Lansing, 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 48820, plotted from its record coordinates.

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

Scope ZIP code 48820. 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.