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Illinois Health Statistics
34.1% of adults have obesity, #27 highest among states. Compare 102 counties and the largest cities.
- Obesity
- 34.1%
- +0.8 pts
- Diabetes
- 11.6%
- -0.5 pts
- Smoking
- 12.1%
- -0.7 pts
- Uninsured (18-64)
- 9.9%
- -1.2 pts
Health by county
Share of adults, A to Z. Select a name for all 40 measures.
| County | Obesity | Diabetes | Smoking | Depression | Uninsured |
|---|---|---|---|---|---|
| Adams | 37.8% | 12.0% | 14.4% | 22.4% | 7.3% |
| Alexander | 45.3% | 19.0% | 19.6% | 21.2% | 10.1% |
| Bond | 39.0% | 11.6% | 15.1% | 22.8% | 8.8% |
| Boone | 36.8% | 12.2% | 14.1% | 21.5% | 11.8% |
| Brown | 41.5% | 11.7% | 17.8% | 20.5% | 12.1% |
| Bureau | 38.1% | 13.2% | 14.8% | 22.5% | 9.1% |
| Calhoun | 35.3% | 11.9% | 12.9% | 21.2% | 6.4% |
| Carroll | 38.8% | 13.3% | 15.3% | 21.3% | 9.1% |
| Cass | 40.6% | 13.4% | 15.8% | 21.6% | 12.6% |
| Champaign | 31.1% | 9.6% | 11.1% | 22.6% | 7.5% |
| Christian | 38.1% | 12.3% | 16.1% | 22.4% | 8.7% |
| Clark | 37.3% | 12.0% | 14.9% | 22.5% | 7.3% |
| Clay | 41.5% | 13.9% | 17.8% | 23.6% | 9.0% |
| Clinton | 40.2% | 11.3% | 14.0% | 21.7% | 7.5% |
| Coles | 37.7% | 11.4% | 14.8% | 24.1% | 8.2% |
| Cook | 31.0% | 11.8% | 11.1% | 18.7% | 11.8% |
| Crawford | 40.1% | 12.1% | 15.4% | 22.3% | 8.3% |
| Cumberland | 38.7% | 11.9% | 14.5% | 22.9% | 7.1% |
| De Witt | 38.2% | 12.2% | 15.3% | 22.5% | 7.7% |
| DeKalb | 35.1% | 10.3% | 12.6% | 23.0% | 9.2% |
| Douglas | 38.5% | 11.7% | 15.1% | 22.6% | 9.4% |
| DuPage | 29.2% | 10.0% | 9.5% | 17.4% | 7.2% |
| Edgar | 37.5% | 13.6% | 16.4% | 22.8% | 8.1% |
| Edwards | 40.3% | 14.1% | 17.3% | 23.6% | 8.3% |
| Effingham | 34.3% | 11.3% | 14.1% | 22.5% | 7.3% |
| Fayette | 39.8% | 12.7% | 17.4% | 22.4% | 9.8% |
| Ford | 37.7% | 12.4% | 15.8% | 22.9% | 8.5% |
| Franklin | 41.6% | 13.9% | 17.7% | 23.7% | 8.7% |
| Fulton | 39.9% | 13.0% | 16.8% | 23.1% | 8.8% |
| Gallatin | 40.8% | 14.6% | 17.4% | 23.0% | 8.7% |
| Greene | 40.2% | 13.2% | 17.2% | 23.2% | 8.1% |
| Grundy | 36.4% | 10.3% | 13.3% | 22.0% | 8.3% |
| Hamilton | 40.0% | 13.9% | 17.0% | 23.3% | 8.3% |
| Hancock | 38.8% | 13.2% | 14.7% | 22.0% | 7.3% |
| Hardin | 39.7% | 14.7% | 16.9% | 22.4% | 8.4% |
| Henderson | 38.6% | 14.1% | 15.1% | 21.4% | 7.6% |
| Henry | 36.9% | 11.9% | 13.8% | 21.8% | 7.9% |
| Iroquois | 40.6% | 13.9% | 16.4% | 22.8% | 9.6% |
| Jackson | 39.8% | 11.6% | 13.8% | 23.0% | 8.4% |
| Jasper | 38.2% | 12.0% | 14.3% | 22.6% | 6.9% |
| Jefferson | 39.8% | 13.0% | 16.1% | 22.7% | 8.4% |
| Jersey | 39.0% | 11.7% | 14.0% | 22.8% | 6.9% |
| Jo Daviess | 36.1% | 13.2% | 13.0% | 20.6% | 6.8% |
| Johnson | 41.4% | 12.9% | 16.8% | 21.5% | 10.4% |
| Kane | 35.1% | 11.5% | 11.0% | 18.6% | 11.6% |
| Kankakee | 39.8% | 13.0% | 14.7% | 21.4% | 9.9% |
| Kendall | 39.7% | 9.4% | 11.0% | 19.4% | 8.8% |
| Knox | 39.2% | 13.5% | 16.0% | 21.9% | 9.3% |
| Lake | 32.9% | 11.2% | 10.4% | 18.1% | 9.2% |
| LaSalle | 37.8% | 12.4% | 15.0% | 22.3% | 9.3% |
| Lawrence | 40.7% | 12.8% | 17.6% | 22.0% | 10.6% |
| Lee | 38.9% | 12.8% | 15.3% | 21.2% | 9.1% |
| Livingston | 35.9% | 12.2% | 15.3% | 22.0% | 8.8% |
| Logan | 38.5% | 11.6% | 15.1% | 22.2% | 8.5% |
| Macon | 42.1% | 13.3% | 15.0% | 21.7% | 8.1% |
| Macoupin | 37.0% | 12.8% | 15.9% | 22.9% | 7.8% |
| Madison | 38.7% | 11.2% | 13.3% | 22.2% | 7.3% |
| Marion | 39.5% | 13.3% | 17.0% | 23.5% | 8.3% |
| Marshall | 38.6% | 13.0% | 15.2% | 22.5% | 8.1% |
| Mason | 37.3% | 13.3% | 16.0% | 22.6% | 7.7% |
| Massac | 40.8% | 14.1% | 16.6% | 22.8% | 8.4% |
| McDonough | 36.3% | 11.4% | 13.8% | 23.8% | 8.0% |
| McHenry | 32.1% | 10.5% | 11.5% | 21.7% | 7.9% |
| McLean | 34.5% | 9.5% | 11.2% | 22.3% | 6.8% |
| Menard | 37.9% | 11.7% | 14.1% | 22.5% | 6.7% |
| Mercer | 38.6% | 12.4% | 15.3% | 22.4% | 7.8% |
| Monroe | 35.5% | 10.1% | 11.3% | 21.3% | 5.6% |
| Montgomery | 39.1% | 12.6% | 16.1% | 22.3% | 8.6% |
| Morgan | 39.9% | 12.6% | 15.6% | 22.5% | 8.6% |
| Moultrie | 38.4% | 11.6% | 16.0% | 23.7% | 8.4% |
| Ogle | 40.9% | 12.2% | 14.0% | 21.8% | 8.9% |
| Peoria | 34.8% | 12.6% | 13.8% | 22.1% | 8.0% |
| Perry | 40.7% | 13.2% | 17.4% | 22.3% | 10.2% |
| Piatt | 35.1% | 10.9% | 12.5% | 21.7% | 6.2% |
| Pike | 40.6% | 13.3% | 16.8% | 23.2% | 8.5% |
| Pope | 39.6% | 14.9% | 15.0% | 21.3% | 7.1% |
| Pulaski | 45.6% | 18.4% | 20.0% | 21.9% | 11.1% |
| Putnam | 36.1% | 12.1% | 13.1% | 21.1% | 7.4% |
| Randolph | 38.8% | 12.9% | 16.3% | 21.9% | 9.3% |
| Richland | 39.4% | 12.5% | 15.5% | 23.0% | 7.7% |
| Rock Island | 39.6% | 13.1% | 14.5% | 20.4% | 10.0% |
| Saline | 40.3% | 13.5% | 16.7% | 23.3% | 8.3% |
| Sangamon | 39.6% | 11.9% | 13.2% | 21.1% | 7.1% |
| Schuyler | 40.4% | 14.4% | 17.2% | 21.9% | 8.7% |
| Scott | 38.4% | 12.3% | 15.1% | 22.7% | 7.3% |
| Shelby | 37.6% | 13.0% | 15.2% | 22.4% | 7.4% |
| St. Clair | 38.8% | 13.1% | 14.2% | 20.9% | 7.8% |
| Stark | 38.2% | 12.7% | 15.1% | 22.3% | 7.8% |
| Stephenson | 40.6% | 13.9% | 15.0% | 22.4% | 8.2% |
| Tazewell | 36.3% | 11.2% | 13.5% | 23.0% | 6.9% |
| Union | 39.8% | 14.1% | 17.1% | 22.8% | 9.3% |
| Vermilion | 43.8% | 14.4% | 17.2% | 22.9% | 9.7% |
| Wabash | 39.8% | 13.3% | 15.8% | 22.9% | 7.9% |
| Warren | 37.0% | 12.3% | 14.5% | 22.4% | 9.5% |
| Washington | 36.8% | 11.7% | 13.8% | 22.2% | 6.7% |
| Wayne | 39.9% | 13.6% | 17.0% | 23.3% | 8.5% |
| White | 39.2% | 14.5% | 18.1% | 23.5% | 8.9% |
| Whiteside | 36.2% | 13.0% | 14.6% | 21.5% | 9.6% |
| Will | 38.0% | 10.7% | 11.6% | 18.9% | 9.1% |
| Williamson | 40.1% | 12.4% | 14.7% | 22.9% | 7.5% |
| Winnebago | 42.0% | 13.9% | 15.5% | 22.5% | 10.7% |
| Woodford | 37.3% | 10.6% | 12.4% | 22.0% | 6.1% |
Largest cities
Share of adults, largest population first
| City | Obesity | Diabetes | Smoking | Depression | Uninsured |
|---|---|---|---|---|---|
| Chicago | 32.6% | 12.0% | 11.9% | 19.1% | 13.6% |
| Aurora | 35.9% | 11.4% | 11.7% | 18.0% | 15.2% |
| Joliet | 41.9% | 11.7% | 14.0% | 19.7% | 13.9% |
| Naperville | 27.9% | 8.7% | 7.4% | 16.8% | 4.6% |
| Rockford | 44.7% | 15.4% | 18.1% | 22.6% | 14.0% |
| Elgin | 35.8% | 12.1% | 12.2% | 18.7% | 16.8% |
| Springfield | 41.1% | 12.9% | 14.7% | 21.2% | 8.2% |
| Peoria | 36.2% | 13.5% | 15.1% | 21.9% | 9.3% |
| Waukegan | 40.2% | 14.4% | 14.3% | 17.6% | 21.3% |
| Champaign | 31.2% | 8.2% | 11.6% | 23.3% | 9.2% |
| Cicero | 35.5% | 13.5% | 12.8% | 17.9% | 29.7% |
| Schaumburg | 24.8% | 9.3% | 9.2% | 18.3% | 7.2% |
| Bloomington | 35.7% | 10.2% | 12.0% | 21.6% | 7.4% |
| Evanston | 26.3% | 8.6% | 7.7% | 19.5% | 6.8% |
| Arlington Heights | 25.2% | 9.0% | 8.5% | 19.3% | 6.1% |
| Bolingbrook | 38.5% | 11.5% | 11.7% | 17.7% | 10.7% |
| Decatur | 44.4% | 14.5% | 17.2% | 22.1% | 9.5% |
| Palatine | 27.2% | 9.6% | 9.9% | 19.6% | 9.5% |
| Skokie | 25.1% | 11.6% | 9.7% | 17.3% | 7.8% |
| Des Plaines | 26.8% | 10.8% | 10.4% | 18.8% | 10.0% |
| Orland Park | 26.8% | 10.3% | 9.5% | 20.0% | 6.7% |
| Oak Lawn | 30.2% | 11.1% | 11.9% | 20.6% | 10.9% |
| Berwyn | 32.8% | 11.6% | 11.1% | 18.3% | 19.0% |
| Mount Prospect | 26.0% | 9.6% | 9.4% | 18.9% | 8.5% |
| Tinley Park | 29.0% | 9.7% | 10.4% | 20.7% | 7.0% |
| Oak Park | 27.3% | 8.6% | 7.3% | 19.0% | 5.6% |
| Wheaton | 28.2% | 8.5% | 8.3% | 18.7% | 5.1% |
| Normal | 35.2% | 8.0% | 11.8% | 25.0% | 8.3% |
| Hoffman Estates | 25.2% | 9.9% | 9.5% | 17.9% | 8.6% |
| Downers Grove | 29.3% | 9.6% | 9.0% | 18.3% | 5.2% |
| Glenview | 23.7% | 10.1% | 7.3% | 17.7% | 5.3% |
| Elmhurst | 27.9% | 8.5% | 7.9% | 18.1% | 5.0% |
| Plainfield | 35.3% | 8.6% | 9.8% | 19.2% | 6.0% |
| Lombard | 29.6% | 9.6% | 10.0% | 18.3% | 6.5% |
| Buffalo Grove | 26.3% | 9.5% | 7.7% | 17.0% | 4.9% |
| Moline | 39.7% | 12.9% | 14.6% | 20.7% | 11.0% |
| Belleville | 39.6% | 12.9% | 15.2% | 21.6% | 8.0% |
| Bartlett | 27.4% | 9.6% | 9.8% | 18.3% | 6.9% |
| DeKalb | 37.3% | 9.9% | 14.2% | 24.1% | 12.0% |
| Crystal Lake | 31.7% | 9.7% | 11.1% | 22.3% | 7.4% |
Illinois compared with the U.S.
Population-weighted average of all counties
Health outcomes
| Adults with | Here | U.S. |
|---|---|---|
| Obesity | 34.1%+0.8 pts | 33.3% |
| Diagnosed diabetes | 11.6%-0.5 pts | 12.1% |
| High blood pressure | 33.0%-1.4 pts | 34.4% |
| High cholesterol (among those screened) | 35.4%-1.0 pts | 36.4% |
| Coronary heart disease | 5.9%about the same | 6.3% |
| Stroke | 3.3%about the same | 3.4% |
| Current asthma | 9.9%about the same | 10.2% |
| COPD | 6.3%about the same | 6.5% |
| Cancer (excluding skin cancer) | 7.6%about the same | 7.7% |
| Arthritis | 24.2%-1.0 pts | 25.2% |
| Depression | 19.8%-1.8 pts | 21.6% |
| All teeth lost (age 65+) | 10.3%-2.3 pts | 12.6% |
Health behaviors
| Adults with | Here | U.S. |
|---|---|---|
| Current smoking | 12.1%-0.7 pts | 12.8% |
| Binge drinking | 17.8%+1.9 pts | 15.9% |
| No leisure-time physical activity | 23.0%-2.2 pts | 25.2% |
| Short sleep (under 7 hours) | 35.4%-0.7 pts | 36.1% |
Prevention
| Adults with | Here | U.S. |
|---|---|---|
| No health insurance (age 18 to 64) | 9.9%-1.2 pts | 11.1% |
| Routine checkup in the past year | 77.8%+1.0 pts | 76.8% |
| Dental visit in the past year | 63.4%+1.7 pts | 61.7% |
| Taking blood pressure medicine (if high) | 75.7%about the same | 75.5% |
| Cholesterol screening | 87.4%+1.2 pts | 86.2% |
| Colorectal cancer screening (age 45 to 75) | 60.2%-3.5 pts | 63.7% |
| Mammogram in the past 2 years (women 50 to 74) | 73.5%-2.6 pts | 76.1% |
Health status
| Adults with | Here | U.S. |
|---|---|---|
| Fair or poor general health | 18.6%-1.2 pts | 19.8% |
| Frequent mental distress | 15.5%-1.0 pts | 16.5% |
| Frequent physical distress | 12.2%-1.1 pts | 13.3% |
Disability
| Adults with | Here | U.S. |
|---|---|---|
| Any disability | 27.6%-2.8 pts | 30.4% |
| Mobility disability | 12.8%-1.0 pts | 13.8% |
| Cognitive disability | 12.6%-1.7 pts | 14.3% |
| Hearing disability | 6.2%-0.6 pts | 6.8% |
| Vision disability | 4.8%-0.5 pts | 5.3% |
| Self-care disability | 3.5%about the same | 3.8% |
| Independent living disability | 7.6%-0.5 pts | 8.1% |
Social needs
| Adults with | Here | U.S. |
|---|---|---|
| Loneliness | 33.5%-0.6 pts | 34.1% |
| Lack of social and emotional support | 25.4%+0.8 pts | 24.6% |
| Food insecurity in the past year | 15.9%about the same | 15.9% |
| Received SNAP (food stamps) in the past year | 13.8%+1.0 pts | 12.8% |
| Housing insecurity in the past year | 13.1%about the same | 13.0% |
| Threat of utility shutoff in the past year | 7.8%about the same | 8.0% |
| Lack of reliable transportation | 8.0%-0.5 pts | 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 Illinois?
- About 34.1% of adults in Illinois have obesity, compared with 33.3% nationwide. Pulaski has the highest county rate (45.6%) and DuPage the lowest (29.2%).
- How many adults in Illinois have diabetes?
- About 11.6% of adults in Illinois have been diagnosed with diabetes (U.S. 12.1%).
- What share of Illinois adults smoke?
- About 12.1% of adults in Illinois currently smoke cigarettes (U.S. 12.8%).
Source: CDC PLACES: Local Data for Better Health · Last updated 12/01/2025 · Model-based estimates of the share of adults. State figures are population-weighted averages of county estimates.