St. Louis   County MO United States

County FIPS 29510
Largest City St. Louis
State Missouri
Latitude 38.6358
Longitude -90.2451
Population 288,512
Density 4675.8 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: $56,160
Median individual: $38,541

Race

Mode: 45.5% White

Gender

 51.5% female 

Rent

  $997 / month  

Median house value: $195,138.0

Age

Median: 36.8 years old

Education

With at least college degree: 41.2%
With STEM degree: 46.8%

Marital Status

 30.2% married 

Never married: 49.8%

Labor Force Participation

 66.5% working 

Unemployed: 5.0%

Average Family Size

 2.83 people 

Commute Time

 22.1 minutes 

Health Care

 9.3% uninsured 

Poverty

 20.6%

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

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