Demographics of Ozaukee County, Wisconsin

Ozaukee County, Wisconsin had 94,346 people on July 1, 2025, by the Census Bureau’s estimate: +2,715 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Ozaukee County, in four figures

94,346
Population: July 1, 2025, Vintage 2025 estimate.; +3.0%
Change since July 2020: +2,715 people.; 43.9 ±0.2
Median age: ACS 2020–⁠2024.; $96,996 ±$3,696
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Ozaukee County, Wisconsin's population grew 3.0% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Ozaukee County, Wisconsin's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Ozaukee County, Wisconsin's population grew 3.0% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Ozaukee County, Wisconsin's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	91,631	100.0	100.0
2021	92,624	101.1	100.2
2022	93,080	101.6	100.7
2023	93,478	102.0	101.6
2024	93,665	102.2	102.5
2025	94,346	103.0	103.1

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Population of Ozaukee County, Wisconsin on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	91,631	+127	−8	+1	+107
2021	92,624	+993	−84	+57	+984
2022	93,080	+456	−193	+224	+487
2023	93,478	+398	−78	+202	+293
2024	93,665	+187	−96	+123	+168
2025	94,346	+681	−105	+66	+726

Age, 2020–2024

The median age is 43.9 ±0.2: for men 42.8 ±0.4 and for women 45.1 ±0.3. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Ozaukee County by age, ACS 2020–2024
Age	People	Share	Wisconsin	United States
Under 5	4,654 ±94	5.0% ±0.1	5.3% ±<0.1	5.6% ±<0.1
5 to 17	14,801 ±536	15.9% ±0.6	16.0% ±0.1	16.3% ±<0.1
18 to 24	7,795 ±468	8.4% ±0.5	9.3% ±0.1	9.1% ±<0.1
25 to 44	20,637 ±613	22.2% ±0.7	25.2% ±0.1	26.9% ±<0.1
45 to 64	24,974 ±666	26.9% ±0.7	25.6% ±0.1	24.8% ±<0.1
65 and over	20,105 ±989	21.6% ±1.1	18.5% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $96,996 ±$3,696, and income per person $59,040 ±$2,042, in 2024 dollars. The median is $77,485 ±$455 in Wisconsin and $80,734 ±$166 in the United States.

Households by income

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Households in Ozaukee County by income, ACS 2020–2024
Household income	Households	Share	Wisconsin	United States
Under $25,000	3,451 ±439	9.0% ±1.1	13.1% ±0.2	14.6% ±<0.1
$25,000 to $49,999	5,815 ±644	15.2% ±1.7	17.9% ±0.2	16.7% ±<0.1
$50,000 to $74,999	5,397 ±536	14.1% ±1.4	17.5% ±0.2	15.5% ±<0.1
$75,000 to $99,999	5,000 ±557	13.1% ±1.4	13.8% ±0.2	12.6% ±<0.1
$100,000 to $149,999	6,975 ±636	18.2% ±1.7	19.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	4,479 ±433	11.7% ±1.1	9.4% ±0.1	9.6% ±<0.1
$200,000 or more	7,192 ±493	18.8% ±1.3	9.2% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Ozaukee County by age, ACS 2020–2024
Age	Below poverty	Rate	Wisconsin	United States
All ages	4,545 ±696	5.0% ±0.8	10.6% ±0.1	12.5% ±0.1
Under 18	929 ±256	4.8% ±1.3	12.8% ±0.3	16.1% ±0.1
18 to 59	1,703 ±375	3.8% ±0.8	10.3% ±0.2	11.6% ±0.1
60 and over	1,913 ±374	7.0% ±1.3	9.3% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Ozaukee County, ACS 2020–2024
Measure	Ozaukee County	Wisconsin	United States
Housing units	39,872 ±52	2,778,572 ±1,533	143,775,355 ±10,234
Occupied	96.1% ±0.9	89.2% ±0.2	89.9% ±0.1
Vacant	3.9% ±0.9	10.8% ±0.2	10.1% ±0.1
Owner occupied	72.9% ±1.8	67.8% ±0.3	65.2% ±0.3
Renter occupied	27.1% ±2.0	32.2% ±0.2	34.8% ±0.1
Median home value	$390,200 ±$8,212	$266,500 ±$1,051	$332,700 ±$236
Median gross rent	$1,154 ±$33	$1,087 ±$4	$1,413 ±$2
Median year built	1978 ±2	1975 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Ozaukee County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Wisconsin	United States
Hispanic or Latino	3,470 ±0	3.7% ±<0.1	8.0% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	82,881 ±219	89.2% ±0.2	78.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	1,368 ±210	1.5% ±0.2	5.9% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	2,028 ±210	2.2% ±0.2	2.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	56 to 170	0.1% to 0.2%	0.5% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 59	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	110 to 390	0.1% to 0.4%	0.3% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	2,833 ±338	3.0% ±0.4	3.7% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Ozaukee County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Wisconsin	United States
Born in the state	66,001 ±1,294	71.0% ±1.4	70.3% ±0.1	57.3% ±<0.1
Born in another state	21,669 ±1,337	23.3% ±1.4	23.6% ±0.1	26.9% ±<0.1
Born a citizen outside the states	638 ±214	0.7% ±0.2	0.9% ±<0.1	1.7% ±<0.1
Born abroad	4,658 ±594	5.0% ±0.6	5.2% ±0.1	14.1% ±<0.1
Naturalized citizens	3,173 ±436	3.4% ±0.5	2.5% ±0.1	7.4% ±<0.1
Not citizens	1,485 ±372	1.6% ±0.4	2.7% ±0.1	6.8% ±<0.1

Ozaukee County among the counties of Wisconsin

18th of 72 by population, July 2025. Every one is listed on the Wisconsin page.

Counties of Wisconsin near Ozaukee County in population, July 2025
County	July 2025	Change since 2020
Sheboygan County	118,047	< +0.1%
Eau Claire County	109,033	+3.0%
Walworth County	106,127	+0.8%
Fond du Lac County	104,669	+0.5%
St. Croix County	98,276	+4.7%
Ozaukee County	94,346	+3.0%
Dodge County	89,097	−0.3%
Jefferson County	86,505	+0.3%
Manitowoc County	81,710	+0.4%
Wood County	74,060	−0.2%
Portage County	71,943	+2.2%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026