Ozaukee County, Wisconsin Demographics 2026
Ozaukee County, Wisconsin has a population of 92,966, the 18th most populous county in Wisconsin. The median household income is $96,996 and the median home value is $390,200. The poverty rate is 5.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Ozaukee County Quick Facts
How Ozaukee County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 92,345 | 92,966 | +0.7% |
| Median household income | $96,734 | $96,996 | +0.3% |
| Median home value | $368,900 | $390,200 | +5.8% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 37 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Ozaukee County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Mequon | 25,270 | $144,051 | 4.2% | $501,600 |
| Port Washington | 12,645 | $81,948 | 6.7% | $296,300 |
| Cedarburg | 12,605 | $84,896 | 4.7% | $422,000 |
| Grafton | 12,445 | $89,861 | 3.7% | $328,800 |
| Saukville | 4,267 | $79,730 | 8.5% | $299,600 |
| Thiensville | 3,299 | $95,685 | 5.6% | $352,100 |
| Belgium | 2,488 | $74,886 | 3.0% | $244,600 |
| Fredonia | 2,448 | $99,013 | 9.7% | $286,000 |
| Waubeka | 573 | $75,859 | 9.1% | $279,400 |
Explore Wisconsin Rankings
Population Overview
Ozaukee County is located in Wisconsin with a total population of 92,966. It is the 18th most populous county out of 72 in Wisconsin. The county encompasses 9 Census-designated places.
Age Demographics
The median age in Ozaukee County is 43.9 years. This is 9% higher than the state median of 40.2 years.
Economy, Income & Housing
The median household income in Ozaukee County is $96,996. This is 25% higher than the state median of $77,485. It is also 20% higher than the national median of $80,734. The poverty rate stands at 5.0%. This is 53% lower than the state poverty rate of 10.5%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 2.8%. This is 15% lower than the state rate of 3.3%. The median home value is $390,200. Housing costs are 46% higher than the state median of $266,500. The home-value-to-income ratio is 4.0x. 72.9% of occupied housing units are owner-occupied. This homeownership rate is 7% higher than the state average of 67.8%.
Race & Ethnicity
Ozaukee County has a predominantly White (non-Hispanic) population, comprising 89.1% of all residents. Hispanic or Latino residents account for 3.7%. The Black or African American population (1.5%) is well below the state average of 5.9%. The Hispanic or Latino population (3.7%) is well below the state average of 8.0%.
Education
51.2% of residents aged 25 and older hold a bachelor's degree or higher. This places Ozaukee County in the top 10% of all counties in the state for educational attainment. This is 53% higher than the state rate of 33.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 97.8%. Notably, 19.0% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All figures for Ozaukee County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Wisconsin and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Ozaukee County, Wisconsin?
Ozaukee County has a population of 92,966, making it the 18th most populous county in Wisconsin.
What is the median income in Ozaukee County?
The median household income in Ozaukee County is $96,996 with a poverty rate of 5.0%.
How many cities are in Ozaukee County, Wisconsin?
Ozaukee County contains 9 Census-designated places.