Washington County, Wisconsin Demographics 2026

Name: Washington County, Wisconsin Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Washington County, Wisconsin has a population of 137,879, the 11th most populous county in Wisconsin. The median household income is $96,359 and the median home value is $344,800. The poverty rate is 5.8%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Washington County Quick Facts

Population 137,879

Median Household Income $96,359

Median Home Value $344,800

Poverty Rate 5.8%

Unemployment Rate 2.5%

Median Age 43.8 years

Homeownership Rate 78.1%

Affordability Ratio 3.6x

Bachelor's Degree+ 35.2%

High School Graduation 95.8%

Cities/Places 9

Population 137,879 11th of 72

Median Income $96,359 24% higher than state

Poverty Rate 5.8%

Unemployment 2.5%

How Washington 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	137,320	137,879	+0.4%
Median household income	$95,851	$96,359	+0.5%
Median home value	$316,200	$344,800	+9.0%

Median Household Income

Washington

$96,359

$77,485

National

$80,734

Median Home Value

Washington

$344,800

$266,500

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 9.2%

$25K-$50K 13.4%

$50K-$100K 29.4%

$100K+ 48.0%

Detailed income brackets

Under $10K

2.8%

$10K-$15K

1.9%

$15K-$20K

2.0%

$20K-$25K

2.5%

$25K-$30K

2.7%

$30K-$35K

3.0%

$35K-$40K

2.1%

$40K-$45K

2.4%

$45K-$50K

3.1%

$50K-$60K

7.0%

$60K-$75K

8.9%

$75K-$100K

13.5%

$100K-$125K

13.1%

$125K-$150K

10.2%

$150K-$200K

12.9%

$200K+

11.8%

Employment

2.5% Unemployment Rate State: 3.3%|National: 5.2%

68.1% Labor Force Participation

Housing Overview

Owner 78.1%

Renter 21.9%

Affordability Index Affordable

3.6x home value to income ratio

Median gross rent $1,153/mo 14.4% of median household income annually

People & Demographics

Age Distribution

Under 18

21.0%

18-34

17.7%

35-54

25.6%

55-74

27.8%

75+

7.9%

Race & Ethnicity

Diversity Index

Very Low Diversity

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 Washington County

City	Population	Median Income	Poverty	Home Value
West Bend	32,030	$74,076	8.2%	$263,100
Germantown	20,962	$100,231	4.9%	$373,600
Hartford	15,821	$82,014	9.0%	$297,100
Richfield	11,755	$143,963	4.8%	$503,400
Jackson	8,003	$93,170	6.0%	$321,500
Slinger	6,307	$101,404	2.9%	$367,000
Kewaskum	4,461	$94,141	10.8%	$288,800
Newburg	1,287	$78,214	2.4%	$261,900
Allenton	842	$102,868	3.6%	$235,800

Explore Wisconsin Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Washington County is located in Wisconsin with a total population of 137,879. It is the 11th most populous county out of 72 in Wisconsin. The county encompasses 9 Census-designated places.

Age Demographics

The median age in Washington County is 43.8 years. This is 9% higher than the state median of 40.2 years.

Economy, Income & Housing

The median household income in Washington County is $96,359. This is 24% higher than the state median of $77,485. It is also 19% higher than the national median of $80,734. The poverty rate stands at 5.8%. This is 45% lower than the state poverty rate of 10.5%. The unemployment rate is 2.5%. This is 22% lower than the state rate of 3.3%. The median home value is $344,800. Housing costs are 29% higher than the state median of $266,500. The home-value-to-income ratio is 3.6x. 78.1% of occupied housing units are owner-occupied. This homeownership rate is 15% higher than the state average of 67.8%.

Race & Ethnicity

Washington County has a predominantly White (non-Hispanic) population, comprising 90.2% of all residents. Hispanic or Latino residents account for 3.8%. The Black or African American population (1.3%) is well below the state average of 5.9%. The Hispanic or Latino population (3.8%) is well below the state average of 8.0%. The Asian population (1.5%) is well below the state average of 2.9%.

Education

35.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 5% 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 95.8%.

Data Sources & Methodology

All figures for Washington 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 Washington County, Wisconsin?

Washington County has a population of 137,879, making it the 11th most populous county in Wisconsin.

What is the median income in Washington County?

The median household income in Washington County is $96,359 with a poverty rate of 5.8%.

How many cities are in Washington County, Wisconsin?

Washington County contains 9 Census-designated places.