ZIP Code 48121

48121 is one of Michigan's ZIP codes, delivering to addresses in Dearborn, Wayne County.

City: Dearborn
County: Wayne County
State: Michigan
Prefix: 481xx

Where this code sits

48121 is part of the 481xx range, the group of codes handled by one mail processing centre. Dearborn is served by 6 ZIP codes in total; the full list, with the county each falls in, is on the Dearborn page.

Dearborn Michigan ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 48121 delivers to without sharing its boundary.

ZIP codes nearest 48121

The ZIP codes whose reference points sit closest to 48121.
ZIP code	Distance	Delivers to
ZIP code 48123	0.0 mi	Dearborn, MI
ZIP code 48136	0.0 mi	Garden City, MI
ZIP code 48222	0.0 mi	Detroit, MI
ZIP code 48233	0.0 mi	Detroit, MI
ZIP code 48244	0.0 mi	Detroit, MI
ZIP code 48260	0.0 mi	Detroit, MI
ZIP code 48265	0.0 mi	Detroit, MI
ZIP code 48266	0.0 mi	Detroit, 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 48121, plotted from its record coordinates.

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

Scope ZIP code 48121. 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.