63367   Zip Code Lake Saint Louis St. Charles MO United States

City Lake Saint Louis
County St. Charles
State Missouri
Latitude 38.77805
Longitude -90.79536
Population 29,725
Density 2295.85 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: $137,648
Median individual: $57,898

Race

Mode: 83.9% White

Gender

 50.2% female 

Rent

  $1634 / month  

Median house value: $409,178.0

Age

Median: 39.5 years old

Education

With at least college degree: 52.0%
With STEM degree: 36.2%

Marital Status

 61.4% married 

Never married: 25.9%

Labor Force Participation

 71.4% working 

Unemployed: 3.8%

Average Family Size

 3.06 people 

Commute Time

 26.1 minutes 

Health Care

 3.2% uninsured 

Poverty

 3.2%

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

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