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Zip Code 53066 — Oconomowoc, WI

53066 is a ZIP Code associated with Oconomowoc, WI, located within Waukesha. The postal region supports an estimated population of 37,558 residents across Data Pending housing units, with a population density of 140.6 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.114510, -88.490680)

Data MetricLocal Statistic
Postal / Zip Code53066
Primary CityOconomowoc
State / ProvinceWI
CountyWaukesha
Total Population37,558
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density140.6 people/sq mi
TimezoneAmerica/Chicago

How 53066 Compares

MetricZIP 53066Waukesha CountyWI State Average
Population37,558416,7735,914,913
Median IncomeData PendingN/AN/A
Population Density140.6 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 53069Okauchee3.0 mi671N/A
Zip 53058Nashotah4.3 mi3,405N/A
Zip 53036Ixonia5.9 mi3,730N/A
Zip 53018Delafield6.7 mi8,201N/A
Zip 53003Ashippun6.9 mi130N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →