ZIP Code 61720

61720 is one of Illinois's ZIP codes, delivering to addresses in Anchor, McLean County.

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

Where this code sits

61720 is part of the 617xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Anchor.

Anchor Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61720 delivers to without sharing its boundary.

ZIP codes nearest 61720

The ZIP codes whose reference points sit closest to 61720.
ZIP code	Distance	Delivers to
ZIP code 61731	4.4 mi	Cropsey, IL
ZIP code 61728	5.2 mi	Colfax, IL
ZIP code 61770	7.7 mi	Saybrook, IL
ZIP code 61773	8.1 mi	Sibley, IL
ZIP code 61775	9.6 mi	Strawn, IL
ZIP code 60936	10 mi	Gibson City, IL
ZIP code 61722	11 mi	Arrowsmith, IL
ZIP code 61730	11 mi	Cooksville, 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 61720, plotted from its record coordinates.

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

Scope ZIP code 61720. 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.