Zip Code 53066
Oconomowoc, Wisconsin — Waukesha County
📍 ZIP code 53066 is in Oconomowoc, Waukesha County, Wisconsin.
ZIP code 53066 is located in Oconomowoc, Waukesha County, Wisconsin. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 37,056. The area code for ZIP code 53066 is 608.
Quick Answer
Zip code 53066 is in Oconomowoc, Wisconsin (Waukesha County). It has a population of 37,056, median household income of $111,348, and median home value of $402,800.
Population
37,056
Income
$111,348
Home Value
$402,800
Climate
82°F / 11°F
About Zip Code 53066
Zip code 53066 is located in Oconomowoc, Wisconsin, within Waukesha County. Home to approximately 37,056 residents, this area sits at an elevation of 871 ft and falls within the Central (CST/CDT) timezone. The local area code is 608.
The median household income is $111,348 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $402,800, and the cost of living index is 138 (38% above the national average of 100).
Summers average a high of 82°F while winters drop to 11°F. The area receives about 37 in of rain and 40 in of snow annually. The zip code covers 105.8 square miles of land area and 9.1 square miles of water.
Key Statistics
37,056
$111,348
$402,800
Central (CST/CDT)
608
871 ft
105.8 sq mi
46.4
16,074
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Compare With Nearby Zip Codes
| Metric | 53066 | 53069 | 53058 | 53036 | 53003 | 53018 |
|---|---|---|---|---|---|---|
| City | Oconomowoc, WI | Oconomowoc, WI | Hartland, WI | Ixonia, WI | Ashippun, WI | Delafield, WI |
| Population | 37,056 | 819 | 3,310 | 3,483 | 119 | 7,884 |
| Median Income | $111,348 | $127,959 | $110,234 | $94,231 | $59,034 | $130,511 |
| Home Value | $402,800 | $398,500 | $505,900 | $347,100 | $192,800 | $485,200 |
| Cost of Living | 138 | 152 | 164 | 115 | 68 | 160 |
| Median Age | 46.4 | 59.3 | 50.9 | 41.7 | 60.9 | 46.4 |
Cost of Living
100 = National Average. Oconomowoc's cost of living is 38% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
3.6x
Demographics
Zip code 53066 has a population of 37,056 people with a median age of 46.4. There are 16,074 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Oconomowoc (53066) population trend from 2010 to 2024
↓ -21.9%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
82°F
11°F
37 in
40 in
Oconomowoc experiences warm summers with average highs around 82°F. Winters are cold with lows averaging 11°F. With 40 in of annual snowfall, residents should be prepared for significant winter weather.
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Housing & Economy
Median Home Value
$402,800
Median Household Income
$111,348
With 16,074 housing units across 105.8 square miles, 53066 has a housing density of 152 units per square mile. The home price-to-income ratio is 3.6x.
Location & Geography
Latitude
43.1129°
Longitude
-88.4900°
Land Area
105.8 sq mi
Water Area
9.1 sq mi
Nearby Zip Codes
Zip codes closest to 53066 (Oconomowoc, WI) with distances:
All Zip Codes in Oconomowoc, WI
Other zip codes serving Oconomowoc:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 53066's $111,348. A way to compare Oconomowoc to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 53066 (Oconomowoc, WI). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Oconomowoc, Wisconsin?
Oconomowoc, Wisconsin uses zip code 53066 along with 2 other zip codes.
What county is zip code 53066 in?
Zip code 53066 is located in Waukesha County, Wisconsin.
What is the population of zip code 53066?
The population of zip code 53066 is 37,056 with a median age of 46.4.
Is 53066 in Oconomowoc, Wisconsin?
Yes, zip code 53066 is in Oconomowoc, Waukesha County, Wisconsin. The area code is 608.
Frequently Asked Questions
What city is zip code 53066 in?
Zip code 53066 is in Oconomowoc, Wisconsin. It is part of Waukesha County and uses the Central (CST/CDT) timezone.
What is zip code 53066?
Zip code 53066 is a U.S. postal code in Oconomowoc, Wisconsin (Waukesha County). It has a population of 37,056 and covers 105.8 square miles.
What is the population of zip code 53066?
The population of zip code 53066 (Oconomowoc, WI) is 37,056 with a median age of 46.4. There are approximately 16,074 housing units in this area.
What is the median income in zip code 53066?
The median household income in zip code 53066 (Oconomowoc, WI) is $111,348 per year. The cost of living index is 138 (100 = national average).
What is the average home price in zip code 53066?
The median home value in zip code 53066 (Oconomowoc, WI) is $402,800. The cost of living index is 138 compared to the national average of 100.
What county is zip code 53066 in?
Zip code 53066 is located in Waukesha County, Wisconsin. The primary city is Oconomowoc.
What is the area code for zip code 53066?
Zip code 53066 in Oconomowoc, WI uses area code 608. It is located in the Central (CST/CDT) timezone.
Is zip code 53066 a good place to live?
Zip code 53066 (Oconomowoc, WI) has a cost of living index of 138 (100 = national average), a median household income of $111,348, and median home values of $402,800. The median age is 46.4. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 53066?
The cost of living index for zip code 53066 (Oconomowoc, WI) is 138, where 100 represents the national average. This area is above the national average. Median home value: $402,800.
What schools serve zip code 53066?
Zip code 53066 in Oconomowoc, Wisconsin is served by the local school district of Waukesha County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.