Mercer County Health Data
Mercer County, Illinois
CDC County Health RankingsHealth Score
77/100
Excellent
Life Expectancy
77.3 yr
Uninsured Rate
5.7%
Health Statistics
Life Expectancy
77.3 yr
State avg 76.0 yr
National avg 77.5 yr
Uninsured Rate
5.7%
State avg 6.3%
National avg 9%
Primary Care Providers
13
per 100K population
National avg 82
Mental Health Providers
26
per 100K population
National avg 350
Poor / Fair Health
16.6%
State avg 17.9%
National avg 19.6%
Healthcare Access
Primary Care Physicians
19.2
per 100K residentsCDC: 12.8 per 100K
Dentists
6.4
per 100K residents
Nurse Practitioners & PAs
12.8
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 Mercer County differs most from state and national norms.
Most prevalent chronic conditions
| Measure | Mercer | State avg | National avg | Vs state |
|---|---|---|---|---|
| Obesity | 38.5% | 38.7% | 37.6% | near state average |
| Diabetes | 9.6% | 10.2% | 11.2% | 0.6 pts better than state |
| High Blood Pressure | 31.0% | 32.0% | 33.5% | 1.0 pts better than state |
| Depression | 24.0% | 23.3% | 24.1% | 0.7 pts worse than state |
Health-risk behaviors
| Measure | Mercer | State avg | National avg | Vs state |
|---|---|---|---|---|
| Current Cigarette Smoking | 15.7% | 15.5% | 16.3% | near state average |
| Binge Drinking | 21.1% | 20.1% | 17.8% | 1.0 pts worse than state |
| Physical Inactivity | 22.6% | 23.4% | 27.0% | 0.8 pts better than state |
Preventive-care uptake
| Measure | Mercer | State avg | National avg | Vs state |
|---|---|---|---|---|
| Annual Routine Checkup | 75.2% | 75.6% | 74.9% | near state average |
| Dental Visit (past year) | 62.8% | 60.5% | 57.3% | 2.3 pts better than state |
| Mammography (women 50–74) | 70.2% | 70.6% | 73.3% | near state average |
Daily-life impact
| Measure | Mercer | State avg | National avg | Vs state |
|---|---|---|---|---|
| Frequent Mental Distress | 18.8% | 18.6% | 18.6% | near state average |
| Short Sleep Duration | 36.0% | 37.2% | 37.3% | 1.2 pts better than state |
These rates are part of the CDC PLACES survey. Compare Mercer County nationally on dental visit (past year).
Source: CDC PLACES, 2023 release · age-adjusted prevalence (%). Confidence intervals are available on individual rankings pages.
Data Story
Mercer County Primary Care Provider Ratio Trails National Median
Health data brief for Mercer County, Illinois.
Mercer County has 13 primary care providers per 100,000 residents, a figure that is significantly lower than the national median of 70 per 100,000. This provider shortage extends to mental health services, where the count of 26 providers per 100,000 people is well below the national median of 250 per 100,000. Despite these provider ratios, 5.7% of residents are uninsured, which is a lower rate than the Illinois state average of 6.3% and the national average of 10%. Health outcomes show that 16.6% of residents describe their health as poor or fair, roughly matching the national average of 17%. Life expectancy in Mercer County stands at 77.3 years, which is longer than the state average of 76.0 years and the national average of 77 years. These figures represent the documented health landscape as provided by the U.S. Census Bureau and the CDC. Explore state-level data.
Sources
- CDC County Health Rankings v2
- HHS NPPES
Get Care in Mercer 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
Compare all on Medicare.gov →Genesis Medical Center, Aledo
EReHealth Insurance
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Frequently Asked Questions
What is the health ranking of Mercer County, IL?
What is the life expectancy in Mercer County?
How does Mercer County health compare to the Illinois average?
What health factors affect Mercer County?
Is Mercer County a healthy place to live?
Why is Mercer County healthier than the Illinois average?
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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.