Galesburg, IL ZIP codes

Galesburg, Illinois has 2 ZIP codes. They are in Knox County.

Population in these ZIPs: 32,203
Avg. median income: $50,500population-weighted
Typical home value: $105,400population-weighted
Metro area: Galesburg, IL

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Galesburg, IL ZIP codes list

Galesburg, IL ZIP codes
ZIP code	County	Population	Median income	Typical home value
61401	Knox County	30,580	$50,546	$105,400
61402	Knox County	1,623	—	—

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Galesburg

East Galesburg 4 mi
Henderson 6 mi
Cameron 7 mi
Wataga 7 mi
Knoxville 8 mi
Gerlaw 10 mi
Abingdon 10 mi
Gilson 11 mi
Rio 11 mi
Oneida 12 mi
North Henderson 12 mi
Alexis 13 mi

Frequently asked questions

What is the ZIP code for Galesburg, IL?

Galesburg, IL has 2 ZIP codes: 61401 and 61402.

What county is Galesburg, Illinois in?

Galesburg ZIP codes are in Knox County.