Washington County, Kansas Demographics 2026

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

Washington County, Kansas has a population of 5,533, the 62nd most populous county in Kansas. The median household income is $65,482 and the median home value is $117,100. The poverty rate is 9.3%.

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

Washington County Quick Facts

Population 5,533

Median Household Income $65,482

Median Home Value $117,100

Poverty Rate 9.3%

Unemployment Rate 1.1%

Median Age 43.4 years

Homeownership Rate 78.5%

Affordability Ratio 1.8x

Bachelor's Degree+ 25.8%

High School Graduation 95.0%

Cities/Places 10

Population 5,533 62nd of 105

Median Income $65,482 12% lower than state

Poverty Rate 9.3%

Unemployment 1.1%

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	5,519	5,533	+0.3%
Median household income	$62,452	$65,482	+4.9%
Median home value	$106,100	$117,100	+10.4%

Median Household Income

Washington

$65,482

$74,275

National

$80,734

Median Home Value

Washington

$117,100

$217,200

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 14.8%

$25K-$50K 23.6%

$50K-$100K 35.5%

$100K+ 26.2%

Detailed income brackets

Under $10K

5.0%

$10K-$15K

1.8%

$15K-$20K

4.0%

$20K-$25K

4.0%

$25K-$30K

7.2%

$30K-$35K

5.5%

$35K-$40K

3.5%

$40K-$45K

3.5%

$45K-$50K

3.8%

$50K-$60K

6.9%

$60K-$75K

14.2%

$75K-$100K

14.4%

$100K-$125K

10.2%

$125K-$150K

5.5%

$150K-$200K

5.9%

$200K+

4.6%

Employment

1.1% Unemployment Rate State: 3.9%|National: 5.2%

63.5% Labor Force Participation

Housing Overview

Owner 78.5%

Renter 21.5%

Affordability Index Very Affordable

1.8x home value to income ratio

Median gross rent $562/mo 10.3% of median household income annually

People & Demographics

Age Distribution

Under 18

24.2%

18-34

16.6%

35-54

21.6%

55-74

26.9%

75+

10.7%

Race & Ethnicity

Diversity Index

Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 45 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Washington County

City	Population	Median Income	Poverty	Home Value
Washington	1,155	$58,438	7.1%	$101,100
Hanover	828	$67,813	6.7%	$110,400
Linn	470	$74,432	8.7%	$108,800
Greenleaf	320	$61,250	15.2%	$82,300
Barnes	177	$27,222	27.1%	N/A
Palmer	149	$52,500	25.5%	$133,300
Haddam	118	$67,500	2.5%	$46,300
Morrowville	96	$77,750	0.0%	$41,700
Mahaska	47	$85,500	8.5%	N/A
Hollenberg	9	N/A	44.4%	N/A

Explore Kansas 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 Kansas with a total population of 5,533. It is the 62nd most populous county out of 105 in Kansas. The county encompasses 10 Census-designated places.

Age Demographics

The median age in Washington County is 43.4 years. This is 16% higher than the state median of 37.4 years. 10.7% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Washington County is $65,482. This is 12% lower than the state median of $74,275. It is also 19% lower than the national median of $80,734. The poverty rate stands at 9.3%. This is 18% lower than the state poverty rate of 11.3%. The unemployment rate is 1.1%. This is 72% lower than the state rate of 3.9%. The median home value is $117,100. Housing costs are 46% lower than the state median of $217,200. With a home-value-to-income ratio of just 1.8x, Washington County is one of the most affordable housing markets in the area. 78.5% of occupied housing units are owner-occupied. This homeownership rate is 17% higher than the state average of 67.2%.

Race & Ethnicity

Washington County has a predominantly White (non-Hispanic) population, comprising 89.9% of all residents. Hispanic or Latino residents account for 4.9%. The Black or African American population (0.1%) is well below the state average of 5.1%. The Hispanic or Latino population (4.9%) is well below the state average of 13.6%. The Asian population (0.4%) is well below the state average of 2.9%.

Education

25.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 28% lower than the state rate of 35.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.0%.

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 Kansas 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, Kansas?

Washington County has a population of 5,533, making it the 62nd most populous county in Kansas.

What is the median income in Washington County?

The median household income in Washington County is $65,482 with a poverty rate of 9.3%.

How many cities are in Washington County, Kansas?

Washington County contains 10 Census-designated places.