63366   Zip Code O'Fallon St. Charles MO United States

City O'Fallon
County St. Charles
State Missouri
Latitude 38.85918
Longitude -90.71964
Population 54,769
Density 790.67 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.
Download the data

Household Income

Median household: $100,621
Median individual: $48,881

Race

Mode: 81.5% White

Gender

 50.2% female 

Rent

  $1302 / month  

Median house value: $303,453.0

Age

Median: 40.4 years old

Education

With at least college degree: 33.4%
With STEM degree: 41.0%

Marital Status

 56.1% married 

Never married: 25.9%

Labor Force Participation

 70.4% working 

Unemployed: 3.5%

Average Family Size

 3.13 people 

Commute Time

 24.9 minutes 

Health Care

 5.2% uninsured 

Poverty

 7.0%

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

Home (Maps) | Database License | Privacy | Database Releases | Database Order Lookup | Resources | Contact | FAQs
SimpleMaps.com is a product of Pareto Software, LLC. © 2010-2026.