ZIP Code 61866

61866 is one of Illinois's ZIP codes, delivering to addresses in Rantoul, Champaign County.

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

Where this code sits

61866 is part of the 618xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Rantoul.

Rantoul Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61866 delivers to without sharing its boundary.

ZIP codes nearest 61866

The ZIP codes whose reference points sit closest to 61866.
ZIP code	Distance	Delivers to
ZIP code 60949	4.4 mi	Ludlow, IL
ZIP code 61878	5.2 mi	Thomasboro, IL
ZIP code 61847	6.1 mi	Gifford, IL
ZIP code 61840	6.9 mi	Dewey, IL
ZIP code 61862	10 mi	Penfield, IL
ZIP code 60957	10 mi	Paxton, IL
ZIP code 61843	11 mi	Fisher, IL
ZIP code 61871	12 mi	Royal, 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 61866, plotted from its record coordinates.

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

Scope ZIP code 61866. 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.