ZIP Code 61731

61731 is one of Illinois's ZIP codes, delivering to addresses in Cropsey, McLean County.

City: Cropsey
County: McLean County
State: Illinois
Prefix: 617xx

Where this code sits

61731 is part of the 617xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Cropsey.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61731 delivers to without sharing its boundary.

ZIP codes nearest 61731

The ZIP codes whose reference points sit closest to 61731.
ZIP code	Distance	Delivers to
ZIP code 61720	4.4 mi	Anchor, IL
ZIP code 61775	5.6 mi	Strawn, IL
ZIP code 61773	6.1 mi	Sibley, IL
ZIP code 61728	7.0 mi	Colfax, IL
ZIP code 61739	9.9 mi	Fairbury, IL
ZIP code 61741	11 mi	Forrest, IL
ZIP code 60936	12 mi	Gibson City, IL
ZIP code 61770	12 mi	Saybrook, 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 61731, plotted from its record coordinates.

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

Scope ZIP code 61731. 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.