Get ready-to-use data, reports, analysis, and visualizations covering the demographics of Illinois, United States based on the current United States Census Bureau's 2024 American Community Survey (ACS) 1-Year Estimates.
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Illinois Demographics: 2024 Gender & Age Distribution

According to the U.S. Census Bureau’s 2024 American Community Survey (ACS) 1-Year Estimates, the total population of Illinois is 12,710,158. The median age of the population is 39.4. The median age for males is 38.4 years, and for females it is 40.4 years.
The age distribution of the population in Illinois is as follows:
Age Group | Percentage |
---|---|
Under 5 years | 5.15% |
5–17 years (children) | 16.03% |
18–24 years (young adults) | 9.19% |
25–34 years | 13.67% |
35–54 years | 25.72% |
55–64 years | 12.34% |
65 years and over (seniors) | 17.90% |
The total dependency ratio in Illinois is 64.15%. The youth dependency ratio is 34.78%, and the old-age dependency ratio is 29.38%. In demographic terms, the dependency ratio measures the size of the population typically not in the labor force (children under 18 and older adults 65+) relative to those of working age (18-64). A higher ratio indicates a greater financial and social burden on the working population to support the non-working age groups.
Illinois Demographics: 2024 Distribution of Population by Race & Ethnicity

According to the U.S. Census Bureau’s 2024 American Community Survey (ACS) 1-Year Estimates, the breakdown of the population in Illinois by race and ethnicity (racial demographics) is as follows:
Race/Ethnicity | Percentage of Population |
---|---|
White | 57.09% |
Black/African American | 12.93% |
American Indian and Alaska Native | 0.11% |
Asian | 6.34% |
Native Hawaiian or Other Pacific Islander | 0.02% |
Some other race | 0.33% |
Two or more races | 3.78% |
Hispanic or Latino | 19.38% |
The diversity index score in Illinois is 61.43%, suggesting a high level of diversity.
Illinois Demographics: 2024 Household Income Distribution

According to the U.S. Census Bureau’s 2024 American Community Survey (ACS) 1-Year Estimates, the median household income in Illinois over the past 12 months, adjusted for 2024 inflation, was $83,211.
The distribution of household income in Illinois by income bracket is as follows:
Income Bracket | Percentage |
---|---|
Less than $20,000 | 11.32% |
$20,000–$34,999 | 9.17% |
$35,000–$49,999 | 9.91% |
$50,000–$74,999 | 14.77% |
$75,000–$149,999 | 30.69% |
$150,000 or more | 24.14% |
Illinois Demographics: 2024 Educational Level Breakdown

According to the U.S. Census Bureau’s 2024 American Community Survey (ACS) 1-Year Estimates, the breakdown of the total population of Illinois, age 25 and older, by educational level is as follows:
Educational Level | Percentage of Population |
---|---|
Less than high school graduate | 9.28% |
High school graduate (incl. equivalency) | 24.61% |
Some college or associate's degree | 26.88% |
Bachelor's Degree | 23.32% |
Graduate or professional degree | 15.91% |
39.23% of the population in Illinois has a bachelor's degree or higher, while 90.72% are high school graduates or higher.
Illinois Demographics: 2024 Health Insurance Coverage Status by Sex by Age

According to the U.S. Census Bureau’s 2024 American Community Survey (ACS) 1-Year Estimates, the uninsured rate in Illinois is 6.87%.
Rates of people in Illinois lacking health insurance coverage, by age group and gender are as follows:
Age Group | Males Uninsured | Females Uninsured |
---|---|---|
Under 18 | 4.16% | 3.73% |
Ages 18–34 | 7.23% | 5.88% |
Ages 35–64 | 12.03% | 8.85% |
Ages 65 and older | 0.55% | 2.91% |
Illinois Demographics: 2024 Nativity and Citizenship Status in the United States

According to the U.S. Census Bureau’s 2024 American Community Survey (ACS) 1-Year Estimates, 92.56% of people living in Illinois are U.S. citizens. This includes individuals born in the United States, Puerto Rico, or U.S. Island Areas, those born abroad to American parents, and those who became citizens through naturalization.
7.96% of the population in Illinois are naturalized immigrants, who obtained U.S. citizenship through the immigration and naturalization process.
Illinois Demographics: Means of Transportation to Work

According to the U.S. Census Bureau’s 2024 American Community Survey (ACS) 1-Year Estimates, here’s how people in Illinois commute to work:
Method of Commute | Percentage of Commuters |
---|---|
Car, truck, or van | 74.26% |
Public transportation (excluding taxicab) | 6.97% |
Bicycle | 0.64% |
Walked | 3.11% |
Taxicab, motorcycle, or other means | 1.43% |
Worked from home | 13.58% |
Frequently Asked Questions
The age breakdown for the population of Illinois is as follows:
Age Group | Percentage |
---|---|
Under 5 | 5.15% |
Ages 5–17 | 16.03% |
Ages 18–24 | 9.19% |
Ages 25–34 | 13.67% |
Ages 35–54 | 25.72% |
Ages 55–64 | 12.34% |
65 or older | 17.90% |
The racial and ethnic demographics of the population of Illinois are as follows:
Race/Ethnicity | Percentage |
---|---|
White | 57.09% |
Black/African American | 12.93% |
American Indian and Alaska Native | 0.11% |
Asian | 6.34% |
Native Hawaiian or Other Pacific Islander | 0.02% |
Some other race | 0.33% |
Two or more races | 3.78% |
Hispanic or Latino | 19.38% |
* Hispanic includes respondents of any race. Other categories are non-Hispanic.
The median household income in Illinois was $83,211. The income distribution is as follows:
Income Bracket | Percentage |
---|---|
Less than $20,000 | 11.32% |
$20,000–$34,999 | 9.17% |
$35,000–$49,999 | 9.91% |
$50,000–$74,999 | 14.77% |
$75,000–$149,999 | 30.69% |
$150,000 or more | 24.14% |
The overall uninsured rate in Illinois is 6.87%. The breakdown by age and sex is as follows:
Age Group | Males Uninsured | Females Uninsured |
---|---|---|
Under 18 | 4.16% | 3.73% |
Ages 18–34 | 7.23% | 5.88% |
Ages 35–64 | 12.03% | 8.85% |
Ages 65 and over | 0.55% | 2.91% |