ZIP Code 61435

61435 is one of Illinois's ZIP codes, delivering to addresses in Gerlaw, Warren County.

City: Gerlaw
County: Warren County
State: Illinois
Prefix: 614xx

Where this code sits

61435 is part of the 614xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Gerlaw.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61435 delivers to without sharing its boundary.

ZIP codes nearest 61435

The ZIP codes whose reference points sit closest to 61435.
ZIP code	Distance	Delivers to
ZIP code 61412	4.6 mi	Alexis, IL
ZIP code 61423	7.2 mi	Cameron, IL
ZIP code 61462	7.2 mi	Monmouth, IL
ZIP code 61466	8.8 mi	North Henderson, IL
ZIP code 61401	9.6 mi	Galesburg, IL
ZIP code 61402	9.7 mi	Galesburg, IL
ZIP code 61453	10 mi	Little York, IL
ZIP code 61439	10 mi	Henderson, 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 61435, plotted from its record coordinates.

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

Scope ZIP code 61435. 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.