2024 St. Clair County, Illinois Demographics | Comprehensive Profile
Explore comprehensive demographic statistics, economic indicators, and population trends for St. Clair County, Illinois. Source: 2024 American Community Survey (Census Bureau).
St. Clair County, Illinois Demographic Snapshot (2024)
Key demographic statistics summarized from the U.S. Census Bureau's 2024 American Community Survey (ACS).
Population
253,694
Median Age
39.9 years
Largest Group
White
59.1%% of pop.
Median Income
$73,854
Median Value
$180,300
Bachelor's Degree+
31.8%
Foreign Born
3.3%
Uninsured Rate
5.1%
Work From Home
12.4%
Private Sector
68.4%
Source: U.S. Census Bureau, 2024 American Community Survey (ACS) Estimates
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About This Data
Data Source:
U.S. Census Bureau, 2024 American Survey (ACS)
Survey Year:
2024
Last Updated:
2026-02-11
Geography:
St. Clair County, Illinois (FIPS: 0500000US17163)