ZIP Code 60428

60428 is one of Illinois's ZIP codes, delivering to addresses in Markham, Will County.

City: Markham
County: Will County
State: Illinois
Prefix: 604xx

Where this code sits

60428 is part of the 604xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Markham.

Markham Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 60428 delivers to without sharing its boundary.

ZIP codes nearest 60428

The ZIP codes whose reference points sit closest to 60428.
ZIP code	Distance	Delivers to
ZIP code 60429	1.8 mi	Hazel Crest, IL
ZIP code 60469	1.9 mi	Posen, IL
ZIP code 60426	2.1 mi	Harvey, IL
ZIP code 60478	3.1 mi	Country Club Hills, IL
ZIP code 60472	3.1 mi	Robbins, IL
ZIP code 60452	3.3 mi	Oak Forest, IL
ZIP code 60445	3.4 mi	Midlothian, IL
ZIP code 60430	3.4 mi	Homewood, IL

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 60428, plotted from its record coordinates.

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

Scope ZIP code 60428. 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.