ZIP Code 61873

61873 is one of Illinois's ZIP codes, delivering to addresses in Saint Joseph, Champaign County.

City: Saint Joseph
County: Champaign County
State: Illinois
Prefix: 618xx

Where this code sits

61873 is part of the 618xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Saint Joseph.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61873 delivers to without sharing its boundary.

ZIP codes nearest 61873

The ZIP codes whose reference points sit closest to 61873.
ZIP code	Distance	Delivers to
ZIP code 61859	4.5 mi	Ogden, IL
ZIP code 61871	6.3 mi	Royal, IL
ZIP code 61877	6.8 mi	Sidney, IL
ZIP code 61802	7.2 mi	Urbana, IL
ZIP code 61849	7.4 mi	Homer, IL
ZIP code 61801	8.3 mi	Urbana, IL
ZIP code 61844	8.9 mi	Fithian, IL
ZIP code 61803	9.4 mi	Urbana, 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 61873, plotted from its record coordinates.

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

Scope ZIP code 61873. 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.