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Rock Island County, IL Health Statistics

39.6% of adults have obesity and 13.1% have diabetes, among about 141,236 residents.

Obesity
39.6%
#38 of 102 · +6.3 pts
Diabetes
13.1%
#35 of 102 · +1.0 pts
Smoking
14.5%
+1.7 pts
Uninsured (18-64)
10.0%
-1.1 pts

How it compares

Largest differences from the U.S. average

Higher than the U.S.

  • COPD8.1% vs 6.5%
  • Received SNAP15.6% vs 12.8%
  • Tooth loss (65+)15.2% vs 12.6%

Lower than the U.S.

  • No measure is more than 10% below the U.S. rate.

All health measures

Rock Island County, IL compared with Illinois and the U.S.

Health outcomes

Adults withHereILU.S.
Obesity39.6%+6.3 pts34.1%33.3%
Diagnosed diabetes13.1%+1.0 pts11.6%12.1%
High blood pressure36.1%+1.7 pts33.0%34.4%
High cholesterol (among those screened)37.0%+0.6 pts35.4%36.4%
Coronary heart disease7.3%+1.0 pts5.9%6.3%
Stroke3.9%+0.5 pts3.3%3.4%
Current asthma10.5%about the same9.9%10.2%
COPD8.1%+1.6 pts6.3%6.5%
Cancer (excluding skin cancer)8.8%+1.1 pts7.6%7.7%
Arthritis28.7%+3.5 pts24.2%25.2%
Depression20.4%-1.2 pts19.8%21.6%
All teeth lost (age 65+)15.2%+2.6 pts10.3%12.6%

Health behaviors

Adults withHereILU.S.
Current smoking14.5%+1.7 pts12.1%12.8%
Binge drinking17.9%+2.0 pts17.8%15.9%
No leisure-time physical activity24.9%about the same23.0%25.2%
Short sleep (under 7 hours)35.5%-0.6 pts35.4%36.1%

Prevention

Adults withHereILU.S.
No health insurance (age 18 to 64)10.0%-1.1 pts9.9%11.1%
Routine checkup in the past year78.3%+1.5 pts77.8%76.8%
Dental visit in the past year63.3%+1.6 pts63.4%61.7%
Taking blood pressure medicine (if high)78.0%+2.5 pts75.7%75.5%
Cholesterol screening86.6%about the same87.4%86.2%
Colorectal cancer screening (age 45 to 75)62.5%-1.2 pts60.2%63.7%
Mammogram in the past 2 years (women 50 to 74)71.4%-4.7 pts73.5%76.1%

Health status

Adults withHereILU.S.
Fair or poor general health20.9%+1.1 pts18.6%19.8%
Frequent mental distress16.9%about the same15.5%16.5%
Frequent physical distress14.0%+0.7 pts12.2%13.3%

Disability

Adults withHereILU.S.
Any disability31.3%+0.9 pts27.6%30.4%
Mobility disability15.2%+1.4 pts12.8%13.8%
Cognitive disability13.9%about the same12.6%14.3%
Hearing disability7.8%+1.0 pts6.2%6.8%
Vision disability5.5%about the same4.8%5.3%
Self-care disability4.1%about the same3.5%3.8%
Independent living disability8.9%+0.8 pts7.6%8.1%

Social needs

Adults withHereILU.S.
Loneliness33.4%-0.7 pts33.5%34.1%
Lack of social and emotional support24.7%about the same25.4%24.6%
Food insecurity in the past year16.4%about the same15.9%15.9%
Received SNAP (food stamps) in the past year15.6%+2.8 pts13.8%12.8%
Housing insecurity in the past year13.0%about the same13.1%13.0%
Threat of utility shutoff in the past year8.3%about the same7.8%8.0%
Lack of reliable transportation8.5%about the same8.0%8.5%

Share of adults (18 and older unless noted), crude prevalence. Differences are compared with the U.S.; green is better than the national rate, red is worse. These are model-based estimates, not counts.

Frequently asked questions

What is the obesity rate in Rock Island County, IL?
About 39.6% of adults in Rock Island County, IL have obesity, compared with 34.1% in Illinois and 33.3% nationwide. That ranks #38 of 102 counties in Illinois.
How common is diabetes in Rock Island County, IL?
About 13.1% of adults have diagnosed diabetes (Illinois 11.6%, U.S. 12.1%).
What share of adults smoke in Rock Island County, IL?
About 14.5% of adults currently smoke cigarettes, compared with 12.8% nationwide.
How accurate are these numbers?
They are CDC model-based estimates built from national survey data and local population data, not counts from local health records. Small areas have wider margins of error.

Source: CDC PLACES: Local Data for Better Health · Last updated 12/01/2025 · 2025 release. Share of adults, crude prevalence.