County profile
St. Clair County, IL
United States · GDP 2024
#311 of 3,127 US counties by GDP30th-percentile growthmore diversified than 86% of counties
EA Place Score
——methodology in progress
GDP 2024 (USD)
$16.1B
BEA · 2024
GDP growth (YoY)
+2.1%
BEA · 2024
Jobs tracked
72,871
Census CBP · 2023
Employers
4,973
Census CBP · 2023
Avg. wage
$55.0k
BLS QCEW · 2023
Population
250,708
Census PEP · 2025
Labor, income & education
Unemployment
4.4%
Median HH income
$73.9k±$2.0k
Bachelor's degree+
31.8%±1.1%
Poverty rate
13.6%±0.9%
Business applications
3,432 · 2025
Retail establishments
766
30.5/10k pop
Public companies headquartered here
SEC EDGAR · FMPCompanySectorRevenueEA
No public companies loaded for this state yet — universe expands with the full ingest.
HQ-based placement with total (global) headcount — local employment attribution needs firmographic data; the industry mix at right is measured county data (CBP).
Industry mix · employment
Health care27%
Retail trade24%
Food & accommodation20%
Manufacturing11%
Transportation10%
Professional services8%
share of top-6 sector employment · CBP 2023
Population & migration
Census PEP · 2020–2025
250,708
residents · 2025 · -2.5% since 2020
Income per capita $61.7k · BEA 2024
COMPONENTS OF CHANGE · 2021–2025
Domestic migration−6,029
International migration+1,462
Natural change−1,791
GDP trend
2019–2024 · nominal
$12.4B2019
$12.0B2020
$13.7B2021
$15.0B2022
$15.8B2023
$16.1B2024
Real estate & risk
FHFA · ACS · FEMA
Median home value
$180.3k±$5.1k
Median gross rent
$1.1k/mo±$22/mo
Vacancy rate
12.8%±0.9%
Affordability
3.3× wages
Residential permits
$133.9M
463 units · 1.8/1k pop
FEMA risk score
94.9
HUD Fair Market Rent (2BR):$1.2k/mo · 2026
TOP PERILS · FEMA NRI
Heat wave 98Earthquake 98Hail 98
FHFA HOUSE PRICE INDEX · 2016–2025
2472016
2562017
2602018
2682019
2732020
2982021
3382022
3702023
3932024
4142025
RESIDENTIAL PERMITS · 2021–2025
↓ -15% since 20215422021
8522022
5402023
7402024
4632025
Transport access
BTS · FAA · USACE
Nearest interstate
11.7 km
I-64
Nearest freight rail
0.6 km
CN
Nearest port
21.8 km
Kaskaskia Regional Port District, Dock No. 1.
Nearest commercial airport
11.6 km
SCOTT AFB/MIDAMERICA ST LOUIS
Waterborne tonnage, host port(s) (CY2023):6,704,741 short tons/yr · Southwest Regional Port, IL
Wage trend
BLS QCEW · 2019–2023$55.0k
avg. annual pay · +23% since 2019
Similar US counties
nearest by GDPNearby & same-state counties
by GDP rankThe read
What is the GDP of St. Clair?
St. Clair's economy produced $16.1B in 2024, growing 2.1% year over year — slower than 70% of US counties. Its largest employment sector is health care.
GDP: BEA (2024), USD-normalized · Jobs/employers/wages & industry mix: Census CBP (2023) · Population & migration: Census PEP · Income: BEA CAINC1 · Companies: SEC EDGAR + FMP, by HQ.