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?
St. Clair County has a health score of 64/100, rated "Average." It ranks #58 out of 102 counties in Illinois (1 = healthiest). The score is based on CDC County Health Rankings data, combining life expectancy, uninsured rates, provider access, and behavioral health indicators.
What is the life expectancy in St. Clair County?
Life expectancy in St. Clair County is 74.1 years. The Illinois state average is 76.0 years, making St. Clair County below the state average.
How does St. Clair County health compare to the Illinois average?
St. Clair County's health score of 64/100 is below the Illinois average of 66/100. Life expectancy is 74.1 years vs. the state average of 76.0 years. The uninsured rate is 5.3% vs. 6.3% statewide.
What health factors affect St. Clair County?
Key health factors for St. Clair County include: life expectancy (74.1 years), uninsured rate (5.3%), and primary care physician access (59:1 (population to primary care physicians)). Mental health provider access is 189:1 population-to-provider ratio. These metrics are sourced from the CDC County Health Rankings & Roadmaps program.
Is St. Clair County a healthy place to live?
With a health score of 64/100 ("Average"), St. Clair County has average health outcomes compared to other counties in Illinois. Residents have a life expectancy of 74.1 years. 5.3% of adults lack health insurance. Factors like healthcare access, environmental quality, and socioeconomic conditions all contribute to these outcomes.
What are the biggest health challenges in St. Clair County?
St. Clair County's health score of 64/100 is below the Illinois average of 66/100. Improving health outcomes often requires investment in healthcare infrastructure, insurance coverage expansion, and community health programs.

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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.