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/OCONOMOWOC

Oconomowoc ZIP code, Wisconsin

The ZIP code for Oconomowoc, WI is 53066, and its area code is 262.

USPS city name
1 ZIP code
Population
19,080
Area code
262

Oconomowoc in numbers

About 19,080 people live in Oconomowoc, in 7,833 households, the 44th-largest of Wisconsin's 805 census places. The median household income is $106,425 a year, 37% above the Wisconsin median of $77,485 (US: $80,734). The median owner-occupied home is valued at $394,500 (48% above the Wisconsin median), and median gross rent is $1,301 a month. The median age is 42.6; 48.4% of adults 25 and over hold a bachelor's degree or higher (33.4% across Wisconsin); the average commute takes 25 minutes.

Population19,080Oconomowoc19,080
Households7,833Oconomowoc7,833
Median age42.6Oconomowoc42.6Wisconsin40.2US 38.9
Median household income$106,425Oconomowoc$106,425Wisconsin$77,485US $80,734
Median home value$394,500Oconomowoc$394,500Wisconsin$266,500US $332,700
Median gross rent$1,301Oconomowoc$1,301Wisconsin$1,087US $1,413
Bachelor's degree or higher48.4%Oconomowoc48.4%Wisconsin33.4%US 35.7%
Mean commute24.6 minOconomowoc24.6 minWisconsin22.2 minUS 26.4 min
Population density1,614 / sq miOconomowoc1,614 / sq mi

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

ZIP codes addressed as Oconomowoc

ZIP codes with the USPS city name Oconomowoc
ZIP City Type Population Median income Median home
53066 Oconomowoc , WI Standard 37,558 $113,114 $427,900

Map of Oconomowoc ZIP codes

53066

The ZIP codes of Oconomowoc, 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 Oconomowoc

The nearest larger towns are Watertown (22,774 people, 13 mi), Waukesha (71,233 people, 14 mi) and Brookfield (41,273 people, 19 mi).

Towns near Oconomowoc
TownPopulationDistance
Okauchee Lake 4,733 3.3 mi
Summit 5,114 3.9 mi
Ixonia 2,684 5.7 mi
Delafield 7,202 5.8 mi
Hartland 9,972 8.0 mi
Wales 2,902 9.1 mi
Merton 3,550 9.7 mi
Pewaukee 8,196 12.1 mi
Pewaukee 16,211 12.9 mi
Watertown 22,774 13.3 mi
Sussex 12,066 13.8 mi
Johnson Creek 3,362 14.0 mi
Waukesha 71,233 14.1 mi
Richfield 11,755 16.3 mi

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

Cite this page

zipcodes.pro. “Oconomowoc, WI ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wi/oconomowoc

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