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US state profile

Obesity in Illinois

33.7% of adults in Illinois reported a height and weight in the obesity range in 2025 — the 24th highest of 48 states (including DC).

33.7%

of adults with obesity (2025)

95% CI 32.5%–34.8%

Source: CDC BRFSS

27.1%

in 2011, when this series starts

Source: CDC BRFSS

33.5%

for the US as a whole in the same survey (2025)

Source: CDC BRFSS

Trend

Illinois vs the whole US, 2011–2025

What this meansIllinois went from 27.1% in 2011 to 33.7% in 2025.

0%10%20%30%40%20122014201620182020202220242025Illinois 33.7%US overall 33.5%
  • Illinois
  • US overall

Self-reported height and weight. This CDC dataset starts in 2011.

Source: CDC, Behavioral Risk Factor Surveillance System (BRFSS), via Nutrition, Physical Activity, and Obesity data portal.

Who is most affected in Illinois? (2025)

By sex

What this meansEach bar shows the share of adults in that group with obesity.

  1. Male32.8%
  2. Female34.6%

Hover a bar for the 95% confidence interval. Small groups have wide intervals.

By age

What this meansEach bar shows the share of adults in that group with obesity.

  1. 18 - 2420.2%
  2. 25 - 3429.8%
  3. 35 - 4438.0%
  4. 45 - 5441.1%
  5. 55 - 6439.1%
  6. 65 or older31.6%

Hover a bar for the 95% confidence interval. Small groups have wide intervals.

By race/ethnicity

What this meansEach bar shows the share of adults in that group with obesity.

  1. Non-Hispanic White32.0%
  2. Non-Hispanic Black44.0%
  3. Hispanic37.4%
  4. Non-Hispanic Asian14.0%
  5. Non-Hispanic 2 or more races41.7%
  6. Non-Hispanic Other42.1%

Hover a bar for the 95% confidence interval. Small groups have wide intervals.

By education

What this meansEach bar shows the share of adults in that group with obesity.

  1. Less than high school37.7%
  2. High school graduate34.6%
  3. Some college or technical school38.1%
  4. College graduate28.2%

Hover a bar for the 95% confidence interval. Small groups have wide intervals.

By income

What this meansEach bar shows the share of adults in that group with obesity.

  1. Less than $15,00039.7%
  2. $15,000 - $24,99938.3%
  3. $25,000 - $34,99942.1%
  4. $35,000 - $49,99933.8%
  5. $50,000 - $74,99935.2%
  6. $75,000 or greater33.4%
  7. Data not reported29.9%

Hover a bar for the 95% confidence interval. Small groups have wide intervals.

States ranked nearby

  1. 21. Michigan35.1%
  2. 22. South Dakota34.3%
  3. 23. Virginia34.2%
  4. 24. Illinois33.7%
  5. 25. North Carolina33.5%
  6. 26. Pennsylvania33.5%
  7. 27. Maryland33.1%
All statesUS measured trend

Last updated