Washington   County IA United States

County FIPS 19183
Largest City Washington
State Iowa
Latitude 41.3356
Longitude -91.7179
Population 22,561
Density 39.66 people per square mile
Time Zone America/Chicago
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $75,647
Median individual: $40,098

Race

Mode: 90.1% White

Gender

 50.1% female 

Rent

  $879 / month  

Median house value: $203,529.0

Age

Median: 40.7 years old

Education

With at least college degree: 26.2%
With STEM degree: 42.4%

Marital Status

 55.8% married 

Never married: 25.6%

Labor Force Participation

 67.5% working 

Unemployed: 2.2%

Average Family Size

 2.99 people 

Commute Time

 23.5 minutes 

Health Care

 7.6% uninsured 

Poverty

 8.2%

All data comes from the SimpleMaps US Counties Database, 2026.

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