Port Washington, WI

City in Ozaukee County, WI, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

12,645

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

Median Age

40.5

years ∙ half population younger than 40.5, half older

Diversity Index

15.7%

chance two random people differ in race and ethnicity

Nativity

3.1%

foreign-born population

96.9%Native

3.1% Foreign-born

Geographic Context

Location, size, and surroundings

About

Port Washington is a city within Ozaukee County, Wisconsin, United States.

Location

City in Ozaukee County, WI, US

Co-ordinates

DEC43.384921° N, 87.884134° W

DMS43° 23′ 05.72″ N, 87° 53′ 02.88″ W

Population Density & area

2,125/sq mi (820/km²)

Total Area

5.95 sq mi (15.42 km²)

Land Area

5.95 sq mi (15.42 km²) · 99.97%

Water Area

0 sq mi (0 km²) · 0.03%

Demographics & Living

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

Population Composition

Key characteristics of the population

Sex Distribution

50% male

Male 50%

Female 50%

males per 100 females

Port Washington 99.8

Ozaukee County 98.6

Wisconsin 100.3

Nativity

3.1%

foreign-born population

96.9%Native

3.1% Foreign-born

% Foreign-born

Port Washington 3.1%

Ozaukee County 5%

Wisconsin 5.2%

Age Distribution

How the population is spread across age groups

Median Age

40.5

years ∙ half population younger than 40.5, half older

Port Washington

40.5

Ozaukee County

43.9

Wisconsin

40.2

Dependency ratio

dependents per 100 working-age adults

Port Washington 69

Ozaukee County 74.1

Wisconsin 66.4

AGE DISTRIBUTION

Distribution of age group

Median age

	Port Washington	Ozaukee County	Wisconsin
Age Group
Children (Under 18)	21.6%	20.9%	21.4%
Working age (18-64)	59.2%	57.5%	60.1%
Senior (65+)	19.2%	21.6%	18.5%
Dependency ratio
Total dependency ratio	69	74.1	66.4
Child dependency ratio	36.5	36.4	35.6
Old-age dependency ratio	32.5	37.6	30.8

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

91.7%

Black

1.5%

Asian

0.8%

Hispanic

2.1%

Other

3.9%

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

15.7%

chance two random people differ in race and ethnicity

Port Washington 15.7%

Ozaukee County 20.1%

Wisconsin 37%

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 Port Washington population

Racial and ethnic composition — Port Washington vs Ozaukee County vs Wisconsin. Source: ACS 2020-2024 5-Year Estimates.
	Port Washington	Ozaukee County	Wisconsin
Hispanic or Latino	2.1%	3.7%	8%
Mexican	0.3%	1.9%	5.4%
Puerto Rican	0.1%	0.3%	1.1%
Cuban	0%	0.1%	0.1%
Other Hispanic / Latino	1.8%	1.4%	1.3%
Not Hispanic or Latino	97.9%	96.3%	92%
One race	95%	93.3%	88.3%
White	91.7%	89.2%	78.6%
Black or African American	1.5%	1.5%	5.9%
American Indian and Alaska Native	0.1%	0.1%	0.5%
Asian	0.8%	2.2%	2.9%
Native Hawaiian and Other Pacific Islander	0%	0%	0%
Some Other Race	0.9%	0.3%	0.3%
Two or more races (Multiracial)	2.9%	3%	3.7%

Household & Families Composition

Household size, type, and family structure

Household structure

57.4% family

Family 57.4%

Non family 42.6%

% family households

Port Washington 57.4%

Ozaukee County 66.1%

Wisconsin 60.5%

Average household size

2.21

persons per household

Port Washington

2.21

Ozaukee County

2.38

Wisconsin

2.33

Household & Family COMPOSITION

Households

Percentage of Port Washington population

	Port Washington	Ozaukee County	Wisconsin
Total households	5,572	38,309	2,479,480
Average houshold size	2.21	2.38	2.33
Family households	3,201	25,306	1,500,296
Average family size	2.98	2.96	2.95
Married couple family	2,596	21,432	1,161,326
Other families	605	3,874	338,970
Male householder	231	1,558	112,650
Female householder	374	2,316	226,320
Non-family households	2,371	13,003	979,184
One-person households	2,236	11,319	781,452
Male householder	1,070	4,716	373,428
Senior (65+) living alone	326	1,375	109,743
Female householder	1,166	6,603	408,024
Senior (65+) living alone	744	4,415	210,915
Other living arrangements	135	1,684	197,732

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

5,691

housing units

Port Washington 5,691

Ozaukee County 39,872

Wisconsin 2,778,572

Occupancy status

97.9% occupied

Occupied 97.9%

Vacant 2.1%

vacancy rate

Port Washington 2.1%

Ozaukee County 3.9%

Wisconsin 10.8%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

61.3%

Single family houses

61.3%

Apartments in multi-unit structures

38.7%

Mobile homes

Boat, RV, van, etc

Median Year Built

1976

Half of houses were built before 1976, and half after.

Historic ∙ 1939 or earlier

16.5%

Postwar & mid-century ∙ 1940 - 1969

25.1%

Late 20th century ∙ 1970 - 1999

35.4%

Modern ∙ 2000 or later

23.1%

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

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Port Washington	Ozaukee County	Wisconsin
Rooms per unit
Median rooms	5.8	6.3	5.6
1–3 rooms	11.8%	9.1%	13.2%
4–6 rooms	48.1%	43.4%	52%
7+ rooms	40.1%	47.5%	34.9%
Bedrooms
No bedroom / studio	0.8%	1.1%	2.1%
1 bedroom	10.9%	7.2%	10%
2 bedrooms	30.3%	25.1%	27.8%
3 bedrooms	35.7%	37.7%	40%
4+ bedrooms	22.3%	28.9%	20.1%
At a glance
Median year built	1976	1978	1975
Total housing units	5,691	39,872	2,778,572

Occupancy Profile

Who is inside and how they use it

Homeownership

65.8% owners

Renter-occupied 34.2%

Owner-occupied 65.8%

homeownership rate

Port Washington 65.8%

Ozaukee County 72.9%

Wisconsin 67.8%

Average household size

2.48

Owner-occupied

1.69

Renter-occupied

owner-occupied average size

Port Washington 2.48

Ozaukee County 2.6

Wisconsin 2.49

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Port Washington	Ozaukee County	Wisconsin
Total occupied units	5,572	38,309	2,479,480
Year moved in
2020 or later	23.3%	20.9%	23.1%
2010 to 2019	41.3%	37.1%	38%
2000 to 2009	14.2%	18.4%	17.1%
1999 or earlier	21.2%	23.7%	21.8%
Occupants per room
1.00 or fewer	99.6%	99.3%	98.3%
1.01 to 1.50	0.4%	0.4%	1.2%
1.51 or more	0%	0.3%	0.5%
Vehicles availability
No vehicles	4.9%	3.9%	6.4%
1 vehicle	37.8%	30.9%	33%
2 vehicles	39.4%	45.3%	39.5%
3 or more vehicles	17.9%	19.9%	21.1%
House heating fuel used
Gas	75.9%	79.5%	76.6%
Electricity	23.2%	17.4%	17.8%
Solar	0%	0%	0.1%
Fuel oil, kerosene etc	0%	1.5%	1.4%
All other fuels	0.6%	1.3%	3.5%
No fuel used	0.3%	0.3%	0.6%
Selected characteristics
Lacking complete plumbing	0%	0.1%	0.4%
Lacking complete kitchen	1.7%	0.5%	0.8%
No telephone service available	0.6%	0.3%	0.8%

Housing Value

What owner-occupied units are worth

Median home value

$296,300

owner-occupied units

Median value(USD)

Port Washington

$296,300

Ozaukee County

$390,200

Wisconsin

$266,500

Housing Cost Burden

16.6%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

16.6%

Owners without a mortgage

6.9%

Renters

46.5%

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

	Port Washington	Ozaukee County	Wisconsin
Property value
Median Value	$296,300	$390,200	$266,500
Under $100,000	2.7%	2.3%	9.1%
$100,000 - $200,000	11.5%	6.9%	23%
$200,000 - $300,000	37%	20.5%	25.5%
$300,000 - $500,000	39.1%	40.3%	29.4%
$500,000 - $1,000,000	9.5%	25.6%	11.4%
$1,000,000 and more	0.2%	4.5%	1.7%
Owner-occupied households
With a mortgage	70%	63.9%	61.1%
Without a mortgage	30%	36.1%	38.9%
Median monthly owner costs
With a mortgage	$1,691	$2,090	$1,689
Without a mortgage	$694	$780	$659
Gross rent
Median rent	$1,008	$1,154	$1,087

Education Profile

How educated is the community and how education pays off

Adults with a college degree

40.1%

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

Port Washington 40.1%

Ozaukee County 51.2%

Wisconsin 33.4%

Adults without a high school diploma

of adults (25+) without a high school diploma

Port Washington 3%

Ozaukee County 2.2%

Wisconsin 6.4%

School Enrollment

Who is enrolled in school and at what level

School enrollment

2,671

population (age 3+) enrolled in school

Nursery / Preschool

10.8%

K–12

74.5%

College / Undergraduate

8.2%

Graduate / Professional

6.6%

College-going rate (18-24 yr olds)

27.2%

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

Port Washington

27.2%

Ozaukee County

42.8%

Wisconsin

39.8%

Enrollment & school type

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

Population 3+ currently enrolled in a school

	Port Washington	Ozaukee County	Wisconsin
Total enrolled (age 3+)	2,671	21,662	1,356,381
Nursery / preschool	10.8%	8.1%	5.3%
K–12	74.5%	69.8%	69.3%
Kindergarten	5.2%	5%	5.5%
Elementary: Grades 1–4	28.3%	22%	20.2%
Elementary: Grades 5–8	20.3%	18.9%	21.3%
High School: Grades 9–12	20.6%	23.9%	22.3%
College or graduate school	14.8%	22.1%	25.3%
College, undergraduate	8.2%	18.1%	20.7%
Graduate, professional school	6.6%	4.1%	4.7%
College-going rate · 18-24 yr olds	27.2%	42.8%	39.8%
School type
Public school	70.9%	73.1%	82.4%
Private school	29.1%	26.9%	17.6%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

9,300

population 25 years and over

Total adults (25+)

Less than 9th grade

0.9%

9th-12th, no diploma

2.1%

HS graduate

25.5%

Some college no degree

20.4%

Associates degree

11%

Bachelors degree

28.7%

Graduate or professional degree

11.4%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

19.3% · 80.7%

9th-12th, no diploma

45.1% · 54.9%

HS graduate

49.5% · 50.5%

Some college no degree

52% · 48%

Associates degree

54.5% · 45.5%

Bachelors degree

52.2% · 47.8%

Graduate or professional degree

45.1% · 54.9%

Educational Attainment Overview

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

Highest credential completed · adults 25+

	Port Washington	Ozaukee County	Wisconsin
Population (25+)	9,300	65,716	4,099,973
Less than 9th grade	0.9%	0.7%	2.3%
9th–12th, no diploma	2.1%	1.5%	4.1%
High school diploma or GED	25.5%	20.8%	29.4%
Some college, no degree	20.4%	17.2%	19.5%
Associate's degree	11%	8.6%	11.3%
Bachelor's degree or higher	40.1%	51.2%	33.4%
Bachelor's degree	28.7%	32.2%	22%
Graduate or professional	11.4%	19%	11.4%
High School or higher	97%	97.8%	93.6%

Earnings by education level

percentage as applicable

Median Earnings

$60,773

Median earnings for adults 25+, by level

Less than HS graduate

$—

HS graduate

$39,577

Some college or associates

$63,472

Bachelors degree

$70,541

Graduate or professional degree

$72,500

Poverty Rate

for ages 25+, with bachelors degree or higher

Less than HS graduate

18.2%

HS graduate

3.3%

Some college or associates

9.1%

Bachelors degree or higher

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Port Washington	Ozaukee County	Wisconsin
Median earnings
Population 25+, with earnings	$60,773	$65,175	$53,060
Less than high school graduate	$—	$33,906	$36,585
High school graduate (includes equivalency)	$39,577	$44,526	$42,367
Some college or associate's degree	$63,472	$53,908	$49,438
Bachelor's degree	$70,541	$76,357	$66,239
Graduate or professional degree	$72,500	$98,288	$79,916
Poverty rates
Less than high school graduate	18.2%	19.6%	22.6%
High school graduate (includes equivalency)	3.3%	7.8%	12.2%
Some college or associate's degree	9.1%	6%	7.9%
Bachelor's degree or higher	3%	2.8%	3.7%

Insights for Port Washington, 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.

Cite this page

Citation style

Url to be used as reference

This article is for informational purposes only and is not intended to be legal or tax advice. We recommend that you consult with a qualified professional such as a lawyer or accountant before making a decision. Many of the products and services featured here are from our affiliate partners. We may receive commissions on purchases made from our chosen links. Read advertiser disclosure.