63303   Zip Code Saint Charles St. Charles MO United States

City Saint Charles
County St. Charles
State Missouri
Latitude 38.74013
Longitude -90.54266
Population 46,089
Density 2333.68 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: $99,138
Median individual: $53,671

Race

Mode: 80.1% White

Gender

 50.3% female 

Rent

  $1374 / month  

Median house value: $321,290.0

Age

Median: 41.4 years old

Education

With at least college degree: 48.8%
With STEM degree: 45.3%

Marital Status

 54.1% married 

Never married: 28.1%

Labor Force Participation

 69.0% working 

Unemployed: 2.1%

Average Family Size

 2.81 people 

Commute Time

 21.9 minutes 

Health Care

 3.9% uninsured 

Poverty

 5.3%

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

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