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/IA/HAMILTON

Hamilton ZIP code, Iowa

The ZIP code for Hamilton, IA is 50116, and its area code is 641.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
107
Area code
641
State
Iowa

NANPA lists no telephone rate centre for Hamilton itself, so these are the area codes of the nearest one, Lovilia (3.7 miles). A town on an area-code boundary can differ from its neighbour.

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.

ZIP codes addressed as Hamilton

ZIP codes with the USPS city name Hamilton
ZIP City Type Population Median income Median home
50116 Hamilton , IA Standard 261 $47,143 $168,200

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
50044 Bussey , IA Standard 901 $75,417 $120,700

Map of Hamilton ZIP codes

The ZIP codes of Hamilton, IA, 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 Lovilia (414 people, 2.5 mi), Bussey (414 people, 2.6 mi) and Harvey (174 people, 10 mi).

Towns near Hamilton
TownPopulationDistance
Albia 3,663 11.2 mi
Knoxville 7,473 14.5 mi
Oskaloosa 11,504 16.1 mi
Pella 10,720 16.2 mi
Chariton 4,242 23.6 mi
Ottumwa 25,430 27.1 mi

More nearby: every ZIP code in Marion County · Iowa ZIP codes

Cite this page

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

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