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/KS/WILLIAMSTOWN

Williamstown ZIP codes, Kansas

No ZIP code is named for Williamstown, KS; addresses there use a neighbouring town's name. The ZIP code covering it is 66073. Its area code is 785.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
31
Area code
785
State
Kansas

NANPA lists no telephone rate centre for Williamstown itself, so these are the area codes of the nearest one, Perry (0.0 miles). A town on an area-code boundary can differ from its neighbour.

ZIP codes covering Williamstown

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

ZIP codes overlapping Williamstown
ZIP City Type Population Median income Median home
66073 Perry , KS Standard 2,263 $86,641 $216,600

Map of Williamstown ZIP codes

The ZIP codes of Williamstown, KS, 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 Williamstown

The nearest larger towns are Perry (1,069 people, 3.0 mi), Lecompton (736 people, 3.5 mi) and Lawrence (96,051 people, 8.1 mi).

Towns near Williamstown
TownPopulationDistance
Lawrence 96,051 8.1 mi
Tonganoxie 5,891 13.9 mi
Eudora 6,119 15.6 mi
Topeka 125,786 19.6 mi
Baldwin City 4,911 21.3 mi
De Soto 6,414 22.1 mi
Basehor 7,491 22.2 mi
Bonner Springs 7,839 24.7 mi
Lansing 11,246 26.3 mi
Edwardsville 4,724 27.6 mi
Leavenworth 37,195 28.2 mi
Gardner 24,526 28.2 mi
Shawnee 68,542 28.4 mi
Lenexa 58,384 29.2 mi

More nearby: every ZIP code in Jefferson County · Kansas ZIP codes

Cite this page

zipcodes.pro. “Williamstown, KS ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ks/williamstown

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