ZIP Code 61401

61401 is one of Illinois's ZIP codes, delivering to addresses in Galesburg, Knox County.

City: Galesburg
County: Knox County
State: Illinois
Prefix: 614xx

Where this code sits

61401 is part of the 614xx range, the group of codes handled by one mail processing centre. Galesburg is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Galesburg page.

Galesburg Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61401 delivers to without sharing its boundary.

ZIP codes nearest 61401

The ZIP codes whose reference points sit closest to 61401.
ZIP code	Distance	Delivers to
ZIP code 61402	0.3 mi	Galesburg, IL
ZIP code 61430	3.2 mi	East Galesburg, IL
ZIP code 61448	5.2 mi	Knoxville, IL
ZIP code 61439	5.3 mi	Henderson, IL
ZIP code 61488	7.0 mi	Wataga, IL
ZIP code 61423	8.1 mi	Cameron, IL
ZIP code 61435	9.6 mi	Gerlaw, IL
ZIP code 61410	11 mi	Abingdon, 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 61401, plotted from its record coordinates.

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

Scope ZIP code 61401. 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.