Median Household Income
$104,692
Median Home Value
$320,800
Median Gross Rent
$1,370/mo
Poverty Rate
5.2%
Unemployment Rate
2.9%
Homeownership Rate
80.5%
Bachelor's Degree or Higher
42.7%
Median Age
39.8
Population Over Time
St. Charles County grew 12.1% from 2014 to 2024.
2014
369,781
2016
379,856
2018
389,985
2020
398,472
2022
406,262
2024
414,535
Business & Industry
St. Charles County has 8,946 business establishments employing 143,624 people.
Health care and social assistance
1,201
Construction
1,019
Accommodation and food services
879
Professional, scientific, and technical services
858
Other services (except public administration)
840
Finance and insurance
630
Administrative and support and waste management and remediation services
582
Real estate and rental and leasing
489
Establishments by industry sector. Source: U.S. Census Bureau, County Business Patterns.
Source: U.S. Census Bureau, American Community Survey, ACS 2020-2024.