Ozaukee County, Wisconsin

County in WI, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

92,966

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

43.9

years ∙ half population younger than 43.9, half older

Diversity Index

20.1%

chance two random people differ in race and ethnicity

Nativity

foreign-born population

95%Native

5% Foreign-born

Geographic Context

Location, size, and surroundings

About

Ozaukee County is a county in Wisconsin, United States.

Location

County in WI, US

Co-ordinates

DEC43.501807° N, 87.847551° W

DMS43° 30′ 06.51″ N, 87° 50′ 51.18″ W

Population Density & area

399/sq mi (154.2/km²)

Total Area

1,116 sq mi (2,890 km²)

Land Area

233 sq mi (603 km²) · 20.9%

Water Area

883 sq mi (2,287 km²) · 79.1%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

49.7% male

Male 49.7%

Female 50.3%

males per 100 females

Ozaukee County 98.6

Wisconsin 100.3

United States 98

Nativity

foreign-born population

95%Native

5% Foreign-born

% Foreign-born

Ozaukee County 5%

Wisconsin 5.2%

United States 14.1%

Age Distribution

How the population is spread across age groups

Median Age

43.9

years ∙ half population younger than 43.9, half older

Ozaukee County

43.9

Wisconsin

40.2

United States

38.9

Dependency ratio

74.1

dependents per 100 working-age adults

Ozaukee County 74.1

Wisconsin 66.4

United States 64.4

AGE DISTRIBUTION

Distribution of age group

Median age

	Ozaukee County	Wisconsin	United States
Age Group
Children (Under 18)	20.9%	21.4%	22%
Working age (18-64)	57.5%	60.1%	60.8%
Senior (65+)	21.6%	18.5%	17.2%
Dependency ratio
Total dependency ratio	74.1	66.4	64.4
Child dependency ratio	36.4	35.6	36.1
Old-age dependency ratio	37.6	30.8	28.3

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

89.2%

Black

1.5%

Asian

2.2%

Hispanic

3.7%

Other

3.4%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

20.1%

chance two random people differ in race and ethnicity

Ozaukee County 20.1%

Wisconsin 37%

United States 61.4%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Ozaukee County population

	Ozaukee County	Wisconsin	United States
Hispanic or Latino	3.7%	8%	19.3%
Mexican	1.9%	5.4%	11.3%
Puerto Rican	0.3%	1.1%	1.8%
Cuban	0.1%	0.1%	0.8%
Other Hispanic / Latino	1.4%	1.3%	5.5%
Not Hispanic or Latino	96.3%	92%	80.7%
One race	93.3%	88.3%	76.4%
White	89.2%	78.6%	57.4%
Black or African American	1.5%	5.9%	11.9%
American Indian and Alaska Native	0.1%	0.5%	0.5%
Asian	2.2%	2.9%	5.9%
Native Hawaiian and Other Pacific Islander	0%	0%	0.2%
Some Other Race	0.3%	0.3%	0.6%
Two or more races (Multiracial)	3%	3.7%	4.3%

Household & Families Composition

Household size, type, and family structure

Household structure

66.1% family

Family 66.1%

Non family 33.9%

% family households

Ozaukee County 66.1%

Wisconsin 60.5%

United States 64.2%

Average household size

2.38

persons per household

Ozaukee County

2.38

Wisconsin

2.33

United States

2.53

Household & Family COMPOSITION

Households

Percentage of Ozaukee County population

	Ozaukee County	Wisconsin	United States
Total households	38,309	2,479,480	129,227,496
Average houshold size	2.38	2.33	2.53
Family households	25,306	1,500,296	82,990,528
Average family size	2.96	2.95	3.14
Married couple family	21,432	1,161,326	60,637,388
Other families	3,874	338,970	22,353,140
Male householder	1,558	112,650	6,572,819
Female householder	2,316	226,320	15,780,321
Non-family households	13,003	979,184	46,236,968
One-person households	11,319	781,452	37,140,836
Male householder	4,716	373,428	16,871,444
Senior (65+) living alone	1,375	109,743	5,225,110
Female householder	6,603	408,024	20,269,392
Senior (65+) living alone	4,415	210,915	10,089,070
Other living arrangements	1,684	197,732	9,096,132

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

39,872

housing units

Ozaukee County 39,872

Wisconsin 2,778,572

United States 143,775,355

Occupancy status

96.1% occupied

Occupied 96.1%

Vacant 3.9%

vacancy rate

Ozaukee County 3.9%

Wisconsin 10.8%

United States 10.1%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

74.3%

Single family houses

74.3%

Apartments in multi-unit structures

25.3%

Mobile homes

0.3%

Boat, RV, van, etc

Median Year Built

1978

Half of houses were built before 1978, and half after.

Historic ∙ 1939 or earlier

10.7%

Postwar & mid-century ∙ 1940 - 1969

26.5%

Late 20th century ∙ 1970 - 1999

40.8%

Modern ∙ 2000 or later

22%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Ozaukee County	Wisconsin	United States
Rooms per unit
Median rooms	6.3	5.6	5.5
1–3 rooms	9.1%	13.2%	15.1%
4–6 rooms	43.4%	52%	51.6%
7+ rooms	47.5%	34.9%	33.4%
Bedrooms
No bedroom / studio	1.1%	2.1%	2.9%
1 bedroom	7.2%	10%	10.9%
2 bedrooms	25.1%	27.8%	25%
3 bedrooms	37.7%	40%	38.7%
4+ bedrooms	28.9%	20.1%	22.4%
At a glance
Median year built	1978	1975	1981
Total housing units	39,872	2,778,572	143,775,355

Occupancy Profile

Who is inside and how they use it

Homeownership

72.9% owners

Renter-occupied 27.1%

Owner-occupied 72.9%

homeownership rate

Ozaukee County 72.9%

Wisconsin 67.8%

United States 65.2%

Average household size

2.6

Owner-occupied

1.77

Renter-occupied

owner-occupied average size

Ozaukee County 2.6

Wisconsin 2.49

United States 2.64

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Ozaukee County	Wisconsin	United States
Total occupied units	38,309	2,479,480	129,227,496
Year moved in
2020 or later	20.9%	23.1%	24.8%
2010 to 2019	37.1%	38%	39.6%
2000 to 2009	18.4%	17.1%	16.4%
1999 or earlier	23.7%	21.8%	19.1%
Occupants per room
1.00 or fewer	99.3%	98.3%	96.6%
1.01 to 1.50	0.4%	1.2%	2.2%
1.51 or more	0.3%	0.5%	1.2%
Vehicles availability
No vehicles	3.9%	6.4%	8.4%
1 vehicle	30.9%	33%	33.1%
2 vehicles	45.3%	39.5%	36.6%
3 or more vehicles	19.9%	21.1%	21.9%
House heating fuel used
Gas	79.5%	76.6%	51.4%
Electricity	17.4%	17.8%	41.3%
Solar	0%	0.1%	0.3%
Fuel oil, kerosene etc	1.5%	1.4%	3.9%
All other fuels	1.3%	3.5%	2%
No fuel used	0.3%	0.6%	1.2%
Selected characteristics
Lacking complete plumbing	0.1%	0.4%	0.4%
Lacking complete kitchen	0.5%	0.8%	0.8%
No telephone service available	0.3%	0.8%	0.9%

Housing Value

What owner-occupied units are worth

Median home value

$390,200

owner-occupied units

Median value(USD)

Ozaukee County

$390,200

Wisconsin

$266,500

United States

$332,700

Housing Cost Burden

23.6%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

23.6%

Owners without a mortgage

15.1%

Renters

43.4%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Ozaukee County	Wisconsin	United States
Property value
Median Value	$390,200	$266,500	$332,700
Under $100,000	2.3%	9.1%	11.4%
$100,000 - $200,000	6.9%	23%	15.8%
$200,000 - $300,000	20.5%	25.5%	17.8%
$300,000 - $500,000	40.3%	29.4%	26.9%
$500,000 - $1,000,000	25.6%	11.4%	20.9%
$1,000,000 and more	4.5%	1.7%	7.1%
Owner-occupied households
With a mortgage	63.9%	61.1%	60.6%
Without a mortgage	36.1%	38.9%	39.4%
Median monthly owner costs
With a mortgage	$2,090	$1,689	$1,963
Without a mortgage	$780	$659	$638
Gross rent
Median rent	$1,154	$1,087	$1,413

Education Profile

How educated is the community and how education pays off

Adults with a college degree

51.2%

of adults 25+ with a bachelor's degree or higher

Ozaukee County 51.2%

Wisconsin 33.4%

United States 35.7%

Adults without a high school diploma

2.2%

of adults (25+) without a high school diploma

Ozaukee County 2.2%

Wisconsin 6.4%

United States 10.4%

School Enrollment

Who is enrolled in school and at what level

School enrollment

21,662

population (age 3+) enrolled in school

Nursery / Preschool

8.1%

K–12

69.8%

College / Undergraduate

18.1%

Graduate / Professional

4.1%

College-going rate (18-24 yr olds)

42.8%

of 18-24-year-olds in college or graduate school

Ozaukee County

42.8%

Wisconsin

39.8%

United States

40.9%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Ozaukee County	Wisconsin	United States
Total enrolled (age 3+)	21,662	1,356,381	80,089,790
Nursery / preschool	8.1%	5.3%	5.7%
K–12	69.8%	69.3%	67.6%
Kindergarten	5%	5.5%	5%
Elementary: Grades 1–4	22%	20.2%	19.8%
Elementary: Grades 5–8	18.9%	21.3%	21%
High School: Grades 9–12	23.9%	22.3%	21.7%
College or graduate school	22.1%	25.3%	26.7%
College, undergraduate	18.1%	20.7%	21%
Graduate, professional school	4.1%	4.7%	5.8%
College-going rate · 18-24 yr olds	42.8%	39.8%	40.9%
School type
Public school	73.1%	82.4%	82%
Private school	26.9%	17.6%	18%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

65,716

population 25 years and over

Total adults (25+)

Less than 9th grade

0.7%

9th-12th, no diploma

1.5%

HS graduate

20.8%

Some college no degree

17.2%

Associates degree

8.6%

Bachelors degree

32.2%

Graduate or professional degree

19%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

47.5% · 52.5%

9th-12th, no diploma

51.6% · 48.4%

HS graduate

46.7% · 53.3%

Some college no degree

51% · 49%

Associates degree

48.3% · 51.7%

Bachelors degree

47.6% · 52.4%

Graduate or professional degree

52.2% · 47.8%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Ozaukee County	Wisconsin	United States
Population (25+)	65,716	4,099,973	230,807,303
Less than 9th grade	0.7%	2.3%	4.7%
9th–12th, no diploma	1.5%	4.1%	5.7%
High school diploma or GED	20.8%	29.4%	26%
Some college, no degree	17.2%	19.5%	19.1%
Associate's degree	8.6%	11.3%	8.8%
Bachelor's degree or higher	51.2%	33.4%	35.7%
Bachelor's degree	32.2%	22%	21.6%
Graduate or professional	19%	11.4%	14.1%
High School or higher	97.8%	93.6%	89.6%

Earnings by education level

percentage as applicable

Median Earnings

$65,175

Median earnings for adults 25+, by level

Less than HS graduate

$33,906

HS graduate

$44,526

Some college or associates

$53,908

Bachelors degree

$76,357

Graduate or professional degree

$98,288

Poverty Rate

2.8%

for ages 25+, with bachelors degree or higher

Less than HS graduate

19.6%

HS graduate

7.8%

Some college or associates

Bachelors degree or higher

2.8%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Ozaukee County	Wisconsin	United States
Median earnings
Population 25+, with earnings	$65,175	$53,060	$52,696
Less than high school graduate	$33,906	$36,585	$32,485
High school graduate (includes equivalency)	$44,526	$42,367	$40,153
Some college or associate's degree	$53,908	$49,438	$47,260
Bachelor's degree	$76,357	$66,239	$70,044
Graduate or professional degree	$98,288	$79,916	$90,720
Poverty rates
Less than high school graduate	19.6%	22.6%	24.2%
High school graduate (includes equivalency)	7.8%	12.2%	14.4%
Some college or associate's degree	6%	7.9%	9.8%
Bachelor's degree or higher	2.8%	3.7%	4.5%

Insights for Ozaukee County, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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