ZIP Code 48422

48422 is one of Michigan's ZIP codes, delivering to addresses in Croswell, Sanilac County.

City: Croswell
County: Sanilac County
State: Michigan
Prefix: 484xx

Where this code sits

48422 is part of the 484xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Croswell.

Croswell Michigan ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 48422 delivers to without sharing its boundary.

810 Area code 810

ZIP codes nearest 48422

The ZIP codes whose reference points sit closest to 48422.
ZIP code	Distance	Delivers to
ZIP code 48450	5.4 mi	Lexington, MI
ZIP code 48401	6.9 mi	Applegate, MI
ZIP code 48466	9.4 mi	Peck, MI
ZIP code 48032	9.8 mi	Jeddo, MI
ZIP code 48454	11 mi	Melvin, MI
ZIP code 48419	11 mi	Carsonville, MI
ZIP code 48469	13 mi	Port Sanilac, MI
ZIP code 48006	13 mi	Avoca, 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 48422, plotted from its record coordinates.

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

Scope ZIP code 48422. 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.