Obesity rates in Illinois in 2024

What is the obesity rate in Illinois?

In Illinois, 32.4% of the adult population is obese, according to the Behavioral Risk Factor Monitoring System

The age group with the highest adult incidence of obesity is 55 - 64 years old with 39.1% of this population. The obesity rate is higher for Male (34.1%) in Illinois. Find also the relationship between income/education and obesity in Illinois.

Defining Adult Obesity

The Body Mass Index (BMI) is used to define healthy, overweight and obesity. Use the BMI Calculator to find your BMI.

  • If your BMI is < 18.5: Underweight range.
  • If your BMI is 18.5 to <25: Healthy weight range.
  • If your BMI is 25.0 to <30: Overweight range.
  • If your BMI <= 30.0: Obesity range.

Obesity rates evolution in Illinois

Year Obesity rate in Illinois Obesity rate in the USA
2011 27.1% 27.4%
2012 28.1% 27.7%
2013 29.4% 28.3%
2014 29.3% 28.9%
2015 30.8% 28.9%
2016 31.6% 29.6%
2017 31.1% 30.1%
2018 31.8% 30.9%
2019 31.6% 31.4%
2020 32.4% 31.9%

Obesity rates by age group in Illinois

What age group has the highest obesity rate in Illinois?

In Illinois, the age group with the highest incidence of obesity is 55 - 64 years old. 39.1% of the population is obese.

The age group with the lowest obesity rate is 18 - 24 years old, with 20.1% of this population.

  • 20.1% of people 18 - 24 years old are obese.
  • 28.6% of people 25 - 34 years old are obese.
  • 37.3% of people 35 - 44 years old are obese.
  • 35% of people 45 - 54 years old are obese.
  • 39.1% of people 55 - 64 years old are obese.
  • 31.6% of people 65 or older years old are obese.

Obesity rates by age group in Illinois

Age range Obesity rate in Illinois Sample size
18 - 24 20.1% 257
25 - 34 28.6% 450
35 - 44 37.3% 451
45 - 54 35% 448
55 - 64 39.1% 597
65 or older 31.6% 1,068

Obesity rates by gender in Illinois

Which gender has the highest rate of obesity in Illinois?

The obesity rate is higher for Males (34.1%) in Illinois. Female obesity rate is 30.7%.

An important risk factor for the onset of obesity is gender. In the majority of the population, women have a twice-as-high risk of being overweight or obese. In addition, women have a twofold higher mortality risk than overweight men and are more likely to experience physical and psychological comorbidities associated with obesity.

Obesity rates by gender in Illinois

Year Females Males
2011 26.5% 27.7%
2012 28% 28.3%
2013 30.5% 28.3%
2014 30.7% 27.9%
2015 31.9% 29.7%
2016 31% 32.3%
2017 30.5% 31.7%
2018 33.2% 30.1%
2019 32.2% 31%
2020 30.7% 34.1%

Obesity rates by income and education in Illinois

In Illinois, the income group with the highest incidence of obesity is $35,000 - $49,999. 41.5% of the population is obese.

The income group with the lowest obesity rate is Less than $15,000, with 29.2% of this population.

  • 29.2% of people Less than $15,000 yearly income in Illinois are obese.
  • 32.7% of people $15,000 - $24,999 yearly income in Illinois are obese.
  • 40.5% of people $25,000 - $34,999 yearly income in Illinois are obese.
  • 41.5% of people $35,000 - $49,999 yearly income in Illinois are obese.
  • 35% of people $50,000 - $74,999 yearly income in Illinois are obese.
  • 31.5% of people $75,000 or greater yearly income in Illinois are obese.

Use our BMI calculator for women or our BMI calculator for men to find what your BMI.

Obesity rates by income in Illinois

Yearly income Obesity rate
Less than $15,000 29.2%
$15,000 - $24,999 32.7%
$25,000 - $34,999 40.5%
$35,000 - $49,999 41.5%
$50,000 - $74,999 35%
$75,000 or greater 31.5%

Obesity rates by education in Illinois

Education group Obesity rate
College graduate 25.5%
High school graduate 32.3%
Less than high school 34.7%
Some college or technical school 36.1%