ZIP Code 62423

62423 is one of Illinois's ZIP codes, delivering to addresses in Dennison, Clark County.

City: Dennison
County: Clark County
State: Illinois
Prefix: 624xx

Where this code sits

62423 is part of the 624xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Dennison.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 62423 delivers to without sharing its boundary.

ZIP codes nearest 62423

The ZIP codes whose reference points sit closest to 62423.
ZIP code	Distance	Delivers to
ZIP code 62441	5.9 mi	Marshall, IL
ZIP code 47885	7.2 mi	West Terre Haute, IN
ZIP code 47876	7.7 mi	Saint Mary Of The Woods, IN
ZIP code 47870	8.0 mi	Prairieton, IN
ZIP code 61955	9.1 mi	Vermilion, IL
ZIP code 47801	9.3 mi	Terre Haute, IN
ZIP code 47808	9.5 mi	Terre Haute, IN
ZIP code 47809	9.5 mi	Terre Haute, IN

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 62423, plotted from its record coordinates.

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

Scope ZIP code 62423. 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.