Postal Codes

53066 ZIP Code

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ZIP code 53066 covers Oconomowoc, Wisconsin, with a population of about 37,056 and a median household income of $111,348.

Population
37,056359 per square mile
Median age
46.47.7 points above the US average
Median household income
$111,3481.5× the Wisconsin median
Poverty rate
5.7%6.7 points below the US average
Typical home value
$590,260up 30% in five years
Median rent
$1,2631.2× the Wisconsin median
Degree or higher
46.9%11.9 points above the US average
Homeownership
77.9%12.9 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
940

Where 53066 is

Oconomowoc, Wisconsin — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population37,056
Median age46.4
Family households66.9%
Born outside the US2.3%
Speaks a language other than English at home3.4%
White (non-Hispanic)93%
Black (non-Hispanic)0.9%
Asian (non-Hispanic)0.5%
Hispanic or Latino2.4%
Veterans6.5%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$111,348
Income per person$60,108
Poverty rate5.7%
Households on SNAP or cash assistance5.7%

Household income distribution

Under $10k2.2%
$10–15k1.1%
$15–20k2.5%
$20–25k3.3%
$25–30k3.5%
$30–35k1.8%
$35–40k2.1%
$40–45k2.0%
$45–50k2.2%
$50–60k6.5%
$60–75k5.8%
$75–100k11.5%
$100–125k11.5%
$125–150k10.0%
$150–200k13.9%
$200k or more20.1%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed19,850
Mean adjusted gross income$139,816
Returns declaring $200,000 or more14.2%
Returns, under $25k21.3%
Returns, $25k–$50k15.9%
Returns, $50k–$75k13.1%
Returns, $75k–$100k10.4%
Returns, $100k–$200k25.1%
Returns, $200k or more14.2%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$402,800
Median gross rent$1,263
Rent as a share of household income28%
Owner-occupied77.9%
Vacant homes6.6%
Median year built1982

What the homes are

Detached house76.4%
Attached house3.9%
2 to 4 units4.7%
5 to 19 units6.6%
20 or more units8%
Mobile home0.4%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$590,260as of 2026-07
Typical home value, 1 yearup 6.4%
Typical home value, 5 yearsup 30%
Typical home value, 10 yearsup 83.3%
Typical asking rent$1,877as of 2026-07
Typical asking rent, 1 yearup 4.2%
Typical home value since 2000
200020132026$590,260$206,245

$206,245 in 2000 to $590,260 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate1.9%
Bachelor's degree or higher46.9%
High school diploma or higher96.9%
Works from home14.6%
Drives to work alone78.9%
Takes public transport0.1%
Commutes 45 minutes or more15.7%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity34.9% 1.5 pts above the national average of 33.4%
Diagnosed diabetes10.7% 1.3 pts below the national average of 12%
Currently smokes11.3% 1.9 pts below the national average of 13.2%
High blood pressure34.4% same as the national average of 34.1%
Fair or poor general health14.6% 5.7 pts below the national average of 20.3%
No health insurance (18–64)5.6% 5.7 pts below the national average of 11.3%
Depression21.1% 0.8 pts below the national average of 21.9%
No leisure-time physical activity21.8% 3.6 pts below the national average of 25.4%
Arthritis27.8% 2.7 pts above the national average of 25.1%
Binge drinking20.5% 4.5 pts above the national average of 16%
Taking blood pressure medication79% 4.3 pts above the national average of 74.7%
Cancer (non-skin)10% 2.3 pts above the national average of 7.7%
Current asthma10.6% same as the national average of 10.4%
Coronary heart disease6.5% same as the national average of 6.2%
Routine check-up in past year79.7% 3 pts above the national average of 76.7%
Cholesterol screening88.8% 2.9 pts above the national average of 85.9%
Cognitive disability10.9% 3.9 pts below the national average of 14.8%
Colorectal screening73.3% 9 pts above the national average of 64.3%
COPD5.7% 0.9 pts below the national average of 6.6%
Visited a dentist73.5% 12.2 pts above the national average of 61.3%
Any disability27.2% 3.5 pts below the national average of 30.7%
Lacks emotional support16.3% 8.5 pts below the national average of 24.8%
Food insecurity7.9% 9.2 pts below the national average of 17.1%
Received food stamps7.8% 6.5 pts below the national average of 14.3%
Hearing disability6.8% same as the national average of 6.7%
High cholesterol36.1% same as the national average of 36.2%
Housing insecurity6.8% 7 pts below the national average of 13.8%
Independent living disability6.6% 1.8 pts below the national average of 8.4%
Lacks transport4.8% 4.4 pts below the national average of 9.2%
Loneliness28.6% 5.8 pts below the national average of 34.4%
Mammography use83% 7.1 pts above the national average of 75.9%
Poor mental health (14+ days)13.4% 3.4 pts below the national average of 16.8%
Mobility disability12.1% 1.9 pts below the national average of 14%
Poor physical health (14+ days)12.1% 1.4 pts below the national average of 13.5%
Self-care disability2.9% 1.1 pts below the national average of 4%
Utility shut-off threat4% 4.8 pts below the national average of 8.8%
Sleeps under 7 hours30.9% 5.5 pts below the national average of 36.4%
Stroke3.1% same as the national average of 3.4%
All natural teeth lost7.3% 5.7 pts below the national average of 13%
Vision disability3.5% 2.1 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments940
People employed15,368
Annual payroll$895,662,000
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Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 60.7% of US census tracts
FEMA ratingVery Low to Relatively High across the 19 census tracts this ZIP code covers
Expected annual loss67.9 out of 100
Community resilience93.3 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Hail88.8Relatively High at its worst in this ZIP code
Cold wave87.2Relatively High at its worst in this ZIP code
Tornado81.4Relatively High at its worst in this ZIP code
Drought80.9Relatively Low at its worst in this ZIP code
Landslide78.6Relatively Low at its worst in this ZIP code
River flooding71.8Relatively High at its worst in this ZIP code
Wildfire71.5Relatively Low at its worst in this ZIP code
Winter weather65.4Relatively Moderate at its worst in this ZIP code
Ice storm59Relatively Moderate at its worst in this ZIP code
Heat wave58.5Relatively Moderate at its worst in this ZIP code
Strong wind55.3Relatively High at its worst in this ZIP code
Lightning47.3Relatively High at its worst in this ZIP code
Earthquake25.7Relatively Low at its worst in this ZIP code
Hurricane20.7Very Low at its worst in this ZIP code
Compared with Wisconsin and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPWisconsinUnited States
Median household income$111,348$75,670$78,538
Income per person$60,108$42,019$43,289
Poverty rate5.7%10.6%12.4%
Median home value$402,800$247,400$303,400
Median gross rent$1,263$1,045$1,348
Homeownership77.9%67.9%65%
Bachelor's degree or higher46.9%32.8%35%
Unemployment rate1.9%3.3%5.2%
Works from home14.6%11.6%13.5%
Born outside the US2.3%5.1%13.9%
Median age46.440.138.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationOCONOMOWOC WWTP, WI US1.7 km away
Rain in a year37 in
Snow in a year40 in

Average high and low by month

January28.1°F / 11.1°F1.65 in rain, 11.1 in snow
February32°F / 14°F1.61 in rain, 9.8 in snow
March43.7°F / 24.6°F2.1 in rain, 4.8 in snow
April56.4°F / 35.8°F3.86 in rain, 2 in snow
May68.6°F / 47.2°F4.14 in rain, 0.2 in snow
June78.4°F / 57°F4.86 in rain
July82.3°F / 61.2°F4.12 in rain
August80.6°F / 59.7°F4.17 in rain
September73.8°F / 51.6°F3.39 in rain
October60.8°F / 39.8°F2.83 in rain, 0.1 in snow
November46°F / 28.6°F2.21 in rain, 1.4 in snow
December33.7°F / 18°F1.87 in rain, 10.2 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket14% of this ZIP code's area
No vehicle and far from a supermarket7% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 5 school districts, so the address decides which one, not the ZIP code.

Oconomowoc Area School District73.2% of this ZIP code's land area
Kettle Moraine School District12.2% of this ZIP code's land area
Arrowhead Union High School District4.9% of this ZIP code's land area
Stone Bank School District4.9% of this ZIP code's land area
Watertown School District4.4% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability7more vulnerable than 7% of US census tracts
Socioeconomic status11more vulnerable than 11% of US census tracts
Household characteristics14more vulnerable than 14% of US census tracts
Racial and ethnic minority status11more vulnerable than 11% of US census tracts
Housing type and transport17more vulnerable than 17% of US census tracts
Walkability5.6 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

53069 Okauchee, WI4.4 km away
53058 Nashotah, WI6.3 km away
53036 Ixonia, WI9.3 km away
53018 Delafield, WI9.8 km away
53118 Dousman, WI10.7 km away
53064 North Lake, WI10.7 km away
53029 Hartland, WI11.5 km away
53003 Ashippun, WI11.6 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Waukesha County68.9% of this ZIP code's land area
Jefferson County17% of this ZIP code's land area
Dodge County13.8% of this ZIP code's land area
Washington County0.2% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area103.17 sq mi
Water area9.24 sq mi
Population density359 people per sq mi
Latitude, longitude43.1095, -88.4862

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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