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/HAMILTON

Hamilton ZIP code, Illinois

The ZIP code for Hamilton, IL is 62341, and its area code is 217.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
2,714
Area code
217

Mail addressed to Hamilton uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Hamilton in numbers

About 2,714 people live in Hamilton, in 1,143 households. The median household income is $56,895 a year, 32% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $114,100 (57% below the Illinois median), and median gross rent is $941 a month. The median age is 39.9; 24.2% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 25 minutes.

Population2,714Hamilton2,714
Households1,143Hamilton1,143
Median age39.9Hamilton39.9Illinois39.0US 38.9
Median household income$56,895Hamilton$56,895Illinois$83,390US $80,734
Median home value$114,100Hamilton$114,100Illinois$263,300US $332,700
Median gross rent$941Hamilton$941Illinois$1,274US $1,413
Bachelor's degree or higher24.2%Hamilton24.2%Illinois37.8%US 35.7%
Mean commute24.5 minHamilton24.5 minIllinois27.8 minUS 26.4 min
Population density762 / sq miHamilton762 / sq mi

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

ZIP codes addressed as Hamilton

ZIP codes with the USPS city name Hamilton
ZIP City Type Population Median income Median home
62341 Hamilton , IL Standard 3,433 $62,262 $136,900

Other ZIP codes overlapping Hamilton

These ZIP codes cover part of Hamilton but are addressed as somewhere else.

ZIP codes overlapping Hamilton
ZIP City Type Population Median income Median home
62379 Warsaw , IL Standard 1,854 $62,200 $103,200

Map of Hamilton ZIP codes

62341

The ZIP codes of Hamilton, 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 Hamilton

The nearest larger towns are Keokuk, IA (9,662 people, 2.5 mi), Fort Madison, IA (10,133 people, 16 mi) and Canton, MO (2,752 people, 20 mi).

Towns near Hamilton
TownPopulationDistance
Keokuk, IA 9,662 2.5 mi
Fort Madison, IA 10,133 15.9 mi
Canton, MO 2,752 20.1 mi

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

Cite this page

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

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