United States › Iowa › Washington County COUNTY
Washington County Iowa · 22,667 residents (2025 est.) · 569 sq mi
Time machine
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The short version
Washington County is a county of 22,561 people in Iowa. That puts it in the top 7% of US counties for household income. The foreign-born share is 3%. About 26% of adults have finished a four-year degree. The typical home is worth $203,900, having more than doubled since 2000. 74% of homes are owner-occupied.
At a glance
Lower income
below the US median
US median: $82,259
Mid-age
median age 40.7
US median: 38.9
Less educated
26% hold a bachelor's degree
US average: 36%
Less affordable
home values up 33%, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 20,670 in 2000
22,667 in 2025 (Census Bureau estimate)
from 37 / sq mi in 2009
US average: 281
from 38.8 in 2000
US average: 38.9
Population, 1990 – 2024
19K 20K 21K 22K 23K 1990 2000 2010 2020 2024 Washington County Age distribution, 2024
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Section 02
Income & economy $75,647
+6%inflation adjusted, since 2000
from $39,103 in 2000
US average: $82,259
from $18,221 in 2000
US average: $44,673
Households earning $100K+
from 25.0% in 2009
US average: 53.3%
from 7.6% in 2000
US average: 12.5%
from 0.383 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing 5.7%
Public administration 4.2%
Professional, scientific, technical 3.8%
Transportation & warehousing 3.8%
Arts, entertainment, food 2%
Education & health services 1%
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$203,900
+33%inflation adjusted, since 2000
from $84,200 in 2000
US average: $376,019
$879
+14%inflation adjusted, since 2000
from $424 in 2000
US average: $1,442
from 75.3% in 2000
26.0% rent
from 6.5% in 2009
US average: 10.0%
from 2.51 people in 2009
US average: 2.54
from 17.9% in 2009
US average: 22.9%
from 40.4% in 2009
US average: 47.4%
from 2.3 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 96%(19,838)
Hispanic / Latino 2.7%(564)
2024
White, non-Hispanic 88.7%(20,008)
Hispanic / Latino 7.8%(1,749)
from 15 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
from 30 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 23 more ancestry groups with data from 16.4% in 2000
US average: 35.6%
High school or higher
from 82.5% in 2000
US average: 89.6%
from 4.8% in 2000
US average: 14.0%
Section 06
Commute & transportation from 15.3 min in 2000
US average: 26.5
from 70.4% in 2009
US average: 68.9%
from 15.2% in 2009
US average: 8.5%
from 0.4% in 2009
US average: 3.2%
from 8.3% in 2009
US average: 15.0%
from 4.1% in 2009
US average: 2.4%
from 0.5% in 2009
US average: 0.4%
from 5.9% in 2009
US average: 8.3%
Section 07
Work & employment from 3.9% in 2011
US average: 5.2%
from 70.0% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 80.9% in 2020
US average: 74.6%
from 14.5% in 2009
US average: 13.1%
from 30.8% in 2009
US average: 42.5%
Section 08
People & community from 2.8% in 2009
US average: 14.1%
from 12.0% in 2009
US average: 6.2%
from 11.7% in 2012
US average: 13.3%
from 10.5% in 2013
US average: 8.4%
from 73.0% in 2017
US average: 91.0%
Computer in household
from 90.5% in 2020
US average: 95.5%
from 87.4% in 2020
US average: 87.7%
from 90.6% in 2016
US average: 77.7%
from 3.9% in 2016
US average: 13.6%
Marital status
Men 15+
Never married 28.9%(2,574)
Women 15+
Never married 22.5%(2,041)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 10.5% in 2013
US average: 8.4%
from 54.3% in 2020
US average: 54.8%
Direct-purchase
from 18.5% in 2020
US average: 13.8%
from 19.3% in 2020
US average: 18.4%
from 21.5% in 2020
US average: 20.9%
VA health care
from 2.5% in 2020
US average: 2.2%
Any private
from 71.8% in 2020
US average: 67.1%
Any public
from 38.2% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 24.4%(213)
Share of the 873 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Washington County Head to head
Compare Washington County to nearby counties WASHINGTON COUNTY VS
Keokuk County
Income $62,329 −18%
Home value $118,700 −42%
Population 9,797 −57%
SEE FULL COMPARISON →
WASHINGTON COUNTY VS
Johnson County
Income $74,935 −1%
Home value $308,600 +51%
Population 160,044 +606%
SEE FULL COMPARISON →
WASHINGTON COUNTY VS
Louisa County
Income $77,354 +2%
Home value $150,100 −26%
Population 10,416 −54%
SEE FULL COMPARISON →
WASHINGTON COUNTY VS
Henry County
Income $67,436 −11%
Home value $164,300 −19%
Population 19,349 −15%
SEE FULL COMPARISON →
Frequently asked
How many people live in Washington County, Iowa? Washington County, Iowa has about 22,561 residents according to the 2024 American Community Survey.
What is the median household income in Washington County, Iowa? The typical household in Washington County, Iowa earns about $75,647 a year. Half of households make more than that, and half make less.
Is Washington County, Iowa expensive? In Washington County, Iowa, the median home is worth about $203,900, and the typical rent is about $879 a month.
How educated are people in Washington County, Iowa? About 26.2% of adults age 25 and over in Washington County, Iowa hold a bachelor's degree or higher.
What is the poverty rate in Washington County, Iowa? About 8.2% of people in Washington County, Iowa live below the federal poverty line.
Has Washington County, Iowa grown since 1990? Yes, Washington County, Iowa has grown since 1990. The population has added about 2,949 residents, a change of about 15 percent over that period.
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