St. Clair County Health Data
St. Clair County, Illinois
Health Score
64/100
Average
Life Expectancy
74.1 yr
Uninsured Rate
5.3%
Health Statistics
Life Expectancy
74.1 yr
State avg 76.0 yr
National avg 77.5 yr
Uninsured Rate
5.3%
State avg 6.3%
National avg 9%
Primary Care Providers
59
per 100K population
National avg 82
Mental Health Providers
189
per 100K population
National avg 350
Data Story
About Health in St. Clair County, Illinois
St. Clair Trails National Health Benchmarks
St. Clair County's 74.1-year life expectancy lags the U.S. average of 76.1 years by 2 years, among the lowest in this group. A 17.6% poor or fair health rate reflects meaningful population health challenges.
Bottom Tier of Illinois County Health Rankings
St. Clair County's 74.1-year life expectancy trails Illinois's state average of 76.0 years significantly. At 5.3% uninsured—slightly below the state average—coverage gaps don't fully explain the county's health disadvantage.
Weakest Health Outcomes in Regional Context
St. Clair County's 74.1-year life expectancy ranks last among this group, falling well below Shelby (77.1 years), Sangamon (76.8 years), and Rock Island (76.4 years). With 59 primary care providers per 100K, the county has moderate physician access, but underlying health conditions drive poor outcomes.
Structural Health Barriers Beyond Insurance
At 5.3% uninsured, St. Clair County has coverage rates similar to state averages, yet the county's 74.1-year life expectancy remains the lowest in this group. With 59 primary care providers per 100K and 189 mental health providers per 100K, the county has adequate care infrastructure, but social determinants and health behaviors appear to be driving poor outcomes.
Get Covered and Engage in Prevention
With 5.3% of St. Clair residents uninsured, ensure your family has coverage through healthcare.gov or Illinois Medicaid. Use your insurance to access preventive care and address chronic conditions early—these steps are critical to improving the county's health trajectory.
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Frequently Asked Questions
What is the health ranking of St. Clair County, IL?
What is the life expectancy in St. Clair County?
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Data Sources
Health data sourced from the County Health Rankings & Roadmaps, a collaboration between the Robert Wood Johnson Foundation and the University of Wisconsin Population Health Institute.
Data is informational only. Not medical or health advice. Coverage varies by county and reporting year.