ZIP Code 61812

61812 is one of Illinois's ZIP codes, delivering to addresses in Armstrong, Vermilion County.

City: Armstrong
County: Vermilion County
State: Illinois
Prefix: 618xx

Where this code sits

61812 is part of the 618xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Armstrong.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61812 delivers to without sharing its boundary.

ZIP codes nearest 61812

The ZIP codes whose reference points sit closest to 61812.
ZIP code	Distance	Delivers to
ZIP code 61871	4.6 mi	Royal, IL
ZIP code 61831	5.0 mi	Collison, IL
ZIP code 61859	6.6 mi	Ogden, IL
ZIP code 61844	6.8 mi	Fithian, IL
ZIP code 61862	7.2 mi	Penfield, IL
ZIP code 61865	7.3 mi	Potomac, IL
ZIP code 61857	7.5 mi	Muncie, IL
ZIP code 61858	9.1 mi	Oakwood, 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 61812, plotted from its record coordinates.

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

Scope ZIP code 61812. 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.