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/WI/WILLIAMS-BAY

Williams Bay ZIP code, Wisconsin

The ZIP code for Williams Bay, WI is 53191, and its area code is 262.

USPS city name
1 ZIP code
Population
2,981
Area code
262

Williams Bay in numbers

About 2,981 people live in Williams Bay, in 1,184 households. The median household income is $84,113 a year, 9% above the Wisconsin median of $77,485 (US: $80,734). The median owner-occupied home is valued at $444,700 (67% above the Wisconsin median), and median gross rent is $900 a month. The median age is 45.9; 49.8% of adults 25 and over hold a bachelor's degree or higher (33.4% across Wisconsin); the average commute takes 27 minutes.

Population2,981Williams Bay2,981
Households1,184Williams Bay1,184
Median age45.9Williams Bay45.9Wisconsin40.2US 38.9
Median household income$84,113Williams Bay$84,113Wisconsin$77,485US $80,734
Median home value$444,700Williams Bay$444,700Wisconsin$266,500US $332,700
Median gross rent$900Williams Bay$900Wisconsin$1,087US $1,413
Bachelor's degree or higher49.8%Williams Bay49.8%Wisconsin33.4%US 35.7%
Mean commute26.7 minWilliams Bay26.7 minWisconsin22.2 minUS 26.4 min
Population density1,073 / sq miWilliams Bay1,073 / sq mi

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

ZIP codes addressed as Williams Bay

ZIP codes with the USPS city name Williams Bay
ZIP City Type Population Median income Median home
53191 Williams Bay , WI Standard 3,261 $75,833 $414,600

Map of Williams Bay ZIP codes

53191

The ZIP codes of Williams Bay, WI, 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 Williams Bay

The nearest larger towns are Delavan (8,689 people, 5.6 mi), Lake Geneva (8,521 people, 6.0 mi) and Elkhorn (10,221 people, 6.4 mi).

Towns near Williams Bay
TownPopulationDistance
Walworth 2,759 4.1 mi
Delavan Lake 2,757 4.2 mi
Delavan 8,689 5.6 mi
Lake Geneva 8,521 6.0 mi
Elkhorn 10,221 6.4 mi
Bloomfield 4,780 10.1 mi
Harvard, IL 9,598 11.0 mi
Genoa City 2,942 12.6 mi
Richmond, IL 2,622 14.4 mi
Burlington 10,987 15.4 mi
Twin Lakes 6,309 15.7 mi
East Troy 4,978 16.2 mi
Wonder Lake, IL 4,292 16.8 mi
Spring Grove, IL 5,917 17.9 mi

More nearby: every ZIP code in Walworth County · Wisconsin ZIP codes

Cite this page

zipcodes.pro. “Williams Bay, WI ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wi/williams-bay

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