Johnson County Health Data
Johnson County, Illinois
CDC County Health RankingsHealth Score
60/100
Average
Life Expectancy
75.8 yr
Uninsured Rate
6.9%
Health Statistics
Life Expectancy
75.8 yr
State avg 76.0 yr
National avg 77.5 yr
Uninsured Rate
6.9%
State avg 6.3%
National avg 9%
Primary Care Providers
7
per 100K population
National avg 82
Mental Health Providers
871
per 100K population
National avg 350
Poor / Fair Health
19.0%
State avg 17.9%
National avg 19.6%
Healthcare Access
Nurse Practitioners & PAs
7.5
per 100K residents
Provider counts from CMS NPPES (National Provider Identifier Registry). Data current as of 2026.
Chronic Disease & Behavioral Health
These prevalence estimates come from the CDC PLACES program (Population-Level Analysis and Community Estimates), which combines BRFSS survey data with statistical modeling to produce county-level rates. Estimates are age-adjusted to enable fair comparisons across counties with different age distributions. Use them to spot where Johnson County differs most from state and national norms.
Most prevalent chronic conditions
| Measure | Johnson | State avg | National avg | Vs state |
|---|---|---|---|---|
| Obesity | 41.9% | 38.7% | 37.6% | 3.2 pts worse than state |
| Diabetes | 11.3% | 10.2% | 11.2% | 1.1 pts worse than state |
| High Blood Pressure | 35.0% | 32.0% | 33.5% | 3.0 pts worse than state |
| Depression | 22.0% | 23.3% | 24.1% | 1.3 pts better than state |
Health-risk behaviors
| Measure | Johnson | State avg | National avg | Vs state |
|---|---|---|---|---|
| Current Cigarette Smoking | 17.4% | 15.5% | 16.3% | 1.9 pts worse than state |
| Binge Drinking | 19.9% | 20.1% | 17.8% | near state average |
| Physical Inactivity | 25.4% | 23.4% | 27.0% | 2.0 pts worse than state |
Preventive-care uptake
| Measure | Johnson | State avg | National avg | Vs state |
|---|---|---|---|---|
| Annual Routine Checkup | 75.3% | 75.6% | 74.9% | near state average |
| Dental Visit (past year) | 58.8% | 60.5% | 57.3% | 1.7 pts worse than state |
| Mammography (women 50–74) | 64.4% | 70.6% | 73.3% | 6.2 pts worse than state |
Daily-life impact
| Measure | Johnson | State avg | National avg | Vs state |
|---|---|---|---|---|
| Frequent Mental Distress | 18.5% | 18.6% | 18.6% | near state average |
| Short Sleep Duration | 38.8% | 37.2% | 37.3% | 1.6 pts worse than state |
These rates are part of the CDC PLACES survey. Compare Johnson County nationally on mammography (women 50–74).
Source: CDC PLACES, 2023 release · age-adjusted prevalence (%). Confidence intervals are available on individual rankings pages.
Data Story
Johnson County Mental Health Provider Ratio Far Exceeds National Norms
Health data brief for Johnson County, Illinois.
Data for Johnson County shows a mental health provider ratio of 871 per 100,000 residents, more than triple the national median of 250. This contrasts with primary care availability, where there are only 7 providers per 100,000 residents, a figure significantly lower than the national median of 70. The county's life expectancy is 75.8 years, which nearly aligns with the Illinois average of 76.0 years but is shorter than the national average of 77 years. Approximately 19.0% of residents report poor or fair health, higher than the national average of 17%. The uninsured rate is 6.9%, which is higher than the Illinois average of 6.3% but lower than the national average of 10%. Explore state-level data.
Sources
- CDC County Health Rankings v2
- HHS NPPES
Get Care in Johnson County, Illinois
Direct contact information for hospitals and community health resources serving this county. Hospital quality ratings come from CMS Care Compare — the federal program that measures hospital performance on safety, patient experience, and outcomes.
Hospitals near you
No CMS Care Compare hospital is located in Johnson County.
This is common in low-population rural counties. Residents typically travel to a hospital in a neighboring county or larger metro. Use Medicare.gov Care Compare to find rated hospitals statewide or contact a federally-funded community health center for primary and preventive care.
eHealth Insurance
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Frequently Asked Questions
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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.