ZIP Code 61721

61721 is one of Illinois's ZIP codes, delivering to addresses in Armington, Tazewell County.

City: Armington
County: Tazewell County
State: Illinois
Prefix: 617xx

Where this code sits

61721 is part of the 617xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Armington.

Armington Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61721 delivers to without sharing its boundary.

ZIP codes nearest 61721

The ZIP codes whose reference points sit closest to 61721.
ZIP code	Distance	Delivers to
ZIP code 61759	5.2 mi	Minier, IL
ZIP code 61747	6.9 mi	Hopedale, IL
ZIP code 61774	7.7 mi	Stanford, IL
ZIP code 61723	8.6 mi	Atlanta, IL
ZIP code 61754	8.7 mi	Mc Lean, IL
ZIP code 62635	9.0 mi	Emden, IL
ZIP code 61751	10 mi	Lawndale, IL
ZIP code 62643	11 mi	Hartsburg, 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 61721, plotted from its record coordinates.

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

Scope ZIP code 61721. 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.