Washington   County MO United States

County FIPS 29221
Largest City Potosi
State Missouri
Latitude 37.9617
Longitude -90.8774
Population 23,470
Density 30.91 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: $56,043
Median individual: $29,975

Race

Mode: 92.1% White

Gender

 51.9% male 

Rent

  $684 / month  

Median house value: $129,923.0

Age

Median: 40.7 years old

Education

With at least college degree: 11.7%
With STEM degree: 47.0%

Marital Status

 53.7% married 

Never married: 24.8%

Labor Force Participation

 51.8% working 

Unemployed: 3.6%

Average Family Size

 3.04 people 

Commute Time

 38.4 minutes 

Health Care

 10.4% uninsured 

Poverty

 17.4%

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

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