ZIP Code 61931

61931 is one of Illinois's ZIP codes, delivering to addresses in Humboldt, Coles County.

City: Humboldt
County: Coles County
State: Illinois
Prefix: 619xx

Where this code sits

61931 is part of the 619xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Humboldt.

Humboldt Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61931 delivers to without sharing its boundary.

ZIP codes nearest 61931

The ZIP codes whose reference points sit closest to 61931.
ZIP code	Distance	Delivers to
ZIP code 61910	6.0 mi	Arcola, IL
ZIP code 61938	9.0 mi	Mattoon, IL
ZIP code 61911	11 mi	Arthur, IL
ZIP code 61920	11 mi	Charleston, IL
ZIP code 61930	11 mi	Hindsboro, IL
ZIP code 61953	14 mi	Tuscola, IL
ZIP code 61928	14 mi	Gays, IL
ZIP code 62469	14 mi	Trilla, 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 61931, plotted from its record coordinates.

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

Scope ZIP code 61931. 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.