Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/IL/GALESBURG

Galesburg ZIP codes, Illinois

Galesburg, IL has 2 ZIP codes (61401 and 61402) and area code 309. The largest is 61401.

USPS city name
2 ZIP codes
Population
29,481
Area code
309

Galesburg in numbers

About 29,481 people live in Galesburg, in 12,628 households. The median household income is $48,297 a year, 42% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $96,400 (63% below the Illinois median), and median gross rent is $801 a month. The median age is 40.8; 19.7% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 17 minutes.

Population29,481Galesburg29,481
Households12,628Galesburg12,628
Median age40.8Galesburg40.8Illinois39.0US 38.9
Median household income$48,297Galesburg$48,297Illinois$83,390US $80,734
Median home value$96,400Galesburg$96,400Illinois$263,300US $332,700
Median gross rent$801Galesburg$801Illinois$1,274US $1,413
Bachelor's degree or higher19.7%Galesburg19.7%Illinois37.8%US 35.7%
Mean commute16.6 minGalesburg16.6 minIllinois27.8 minUS 26.4 min
Population density1,659 / sq miGalesburg1,659 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Galesburg city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Galesburg

ZIP codes with the USPS city name Galesburg
ZIP City Type Population Median income Median home
61401 Galesburg , IL Standard 30,580 $50,546 $100,600
61402 Galesburg , IL Standard 1,623 — —

Map of Galesburg ZIP codes

The ZIP codes of Galesburg, IL, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Galesburg

The nearest larger towns are Moline (42,197 people, 37 mi), Rock Island (36,151 people, 37 mi) and Peoria (112,169 people, 42 mi).

Towns near Galesburg
TownPopulationDistance
Knoxville 3,211 5.6 mi
Abingdon 3,443 10.2 mi
Monmouth 8,581 14.1 mi
Aledo 3,668 25.8 mi
Bushnell 2,677 28.3 mi

More nearby: every ZIP code in Knox County · Illinois ZIP codes

Cite this page

zipcodes.pro. “Galesburg, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/galesburg

Underlying data is public domain or openly licensed — sources, vintages and licences.