Oconomowoc, Wisconsin Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Oconomowoc, Wisconsin is 18,385 as of the 2023 American Community Survey, making it the 46th-largest city in Wisconsin. The median household income is $105,833, the median home value is $367,700, and the median age is 43.1.
The population has grown 26.5% since 2010 (15,818 → 20,002).
18,385
Population
1556
People / sq mi
$105,833
Median Income
$367,700
Median Home Value
Oconomowoc covers 11.8 sq mi of land at 1556 people per square mile.
About Oconomowoc, WI
Oconomowoc is a city in Wisconsin with a population of 18,385. It ranks #46 among cities in Wisconsin by population. The median age is 43.1, older than the national median. The population is 46.9% male and 53.1% female.
The median household income in Oconomowoc is $105,833, above the US median of $74,580. 3.7% of residents live below the federal poverty level. Home values sit at a median of $367,700, with monthly rent averaging $1,235. The homeownership rate of 68.0% is higher than the national rate of 64.8%.
Educational attainment in Oconomowoc reflects 46.9% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 17.2% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 25.4 minutes each way.
Oconomowoc city Population History (2010-2024)
The city of Oconomowoc city had a population of 15,818 in 2010 and 20,002 in 2024, a 26.5% growth over 14 years. The peak was 20,002 in 2024. Average annual growth rate: 1.71%.
20,002
Population (2024)
15,818
Population (2010)
20,002
Peak (2024)
1.71%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 15,818 |
| 2011 | 15,849 |
| 2012 | 15,938 |
| 2013 | 16,284 |
| 2014 | 16,377 |
| 2015 | 16,399 |
| 2016 | 16,556 |
| 2017 | 16,725 |
| 2018 | 16,822 |
| 2019 | 16,981 |
| 2020 | 18,212 |
| 2021 | 18,344 |
| 2022 | 19,215 |
| 2023 | 19,700 |
| 2024 | 20,002 |
Race & Ethnicity
| White | 96.7% |
| Black or African American | 0.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.7% |
| Two or More Races | 0.0% |
Economy & Income
$105,833
Median Household Income
$53,743
Per Capita Income
3.7%
Poverty Rate
1.7%
Unemployment Rate
Housing
$367,700
Median Home Value
$1,235
Median Rent
68.0%
Owner-Occupied
Education
97.2%
High School+
46.9%
Bachelor's+
Commute
0.1%
Drive Alone
77.1%
Public Transit
17.2%
Work From Home
25.4 min
Avg Commute
Community Profile
21.8%
Foreign Born
96.7%
Non-English at Home
6.3%
Veterans
11.1%
With Disability
96.1%
Health Insurance
96.9%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 25.3% |
| Manufacturing | 16.8% |
| Information | 9.1% |
| Finance, Insurance & Real Estate | 8.5% |
| Education, Health Care & Social Services | 7.3% |
| Retail Trade | 5.4% |
| Arts, Entertainment & Food Services | 4.9% |
| Construction | 4.8% |
| Public Administration | 2.7% |
| Transportation & Warehousing | 0.8% |
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City rankings
Frequently Asked Questions
Oconomowoc, Wisconsin has a population of 18,385 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 46th-largest city in Wisconsin.
The median household income in Oconomowoc, Wisconsin is $105,833, with 3.7% of residents living below the federal poverty level.
The median home value in Oconomowoc, Wisconsin is $367,700, with median monthly rent at $1,235 and a homeownership rate of 68.0%.
The median age in Oconomowoc, Wisconsin is 43.1 years. The population is 46.9% male and 53.1% female.
The population has grown 26.5% since 2010 (15,818 → 20,002).
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.