ZIP Code 61820

61820 is one of Illinois's ZIP codes, delivering to addresses in Champaign, Champaign County.

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

Where this code sits

61820 is part of the 618xx range, the group of codes handled by one mail processing centre. Champaign is served by 6 ZIP codes in total; the full list, with the county each falls in, is on the Champaign page.

Champaign Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61820 delivers to without sharing its boundary.

ZIP codes nearest 61820

The ZIP codes whose reference points sit closest to 61820.
ZIP code	Distance	Delivers to
ZIP code 61824	0.4 mi	Champaign, IL
ZIP code 61825	0.4 mi	Champaign, IL
ZIP code 61803	0.9 mi	Urbana, IL
ZIP code 61801	2.0 mi	Urbana, IL
ZIP code 61821	2.0 mi	Champaign, IL
ZIP code 61822	2.8 mi	Champaign, IL
ZIP code 61874	3.2 mi	Savoy, IL
ZIP code 61802	4.5 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 61820, plotted from its record coordinates.

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

Scope ZIP code 61820. 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.