63304   Zip Code Saint Charles St. Charles MO United States

City Saint Charles
County St. Charles
State Missouri
Latitude 38.70583
Longitude -90.68666
Population 43,195
Density 784.2 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: $114,442
Median individual: $53,174

Race

Mode: 88.0% White

Gender

 50.6% female 

Rent

  $1749 / month  

Median house value: $350,122.0

Age

Median: 40.7 years old

Education

With at least college degree: 49.3%
With STEM degree: 41.0%

Marital Status

 61.4% married 

Never married: 25.5%

Labor Force Participation

 69.1% working 

Unemployed: 3.5%

Average Family Size

 3.00 people 

Commute Time

 24.4 minutes 

Health Care

 2.4% uninsured 

Poverty

 3.5%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

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