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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

Bar hart showing the population distribution of Illinois by age group and gender based on 2024 U.S. Census Bureau American Community Survey data
Source: U.S. Census Bureau, ACS 1-Year Estimates (2024)

According to the , 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

Bar chart showing the population distribution by race and ethnicity in Illinois based on 2024 U.S. Census Bureau American Community Survey data.
Source: U.S. Census Bureau, ACS 1-Year Estimates (2024)

According to the , 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

Bar chart showing the distribution of household income by income bracket for Illinois based on 2024 U.S. Census Bureau American Community Survey data.
Source: U.S. Census Bureau, ACS 1-Year Estimates (2024)

According to the , 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

Treemap showing the educational attainment levels of the population in Illinois based on 2024 American Community Survey (ACS) data.
Source: U.S. Census Bureau, ACS 1-Year Estimates (2024)

According to the , the breakdown of the total population of Illinois, age 25 and older, by educational level is as follows:

Educational Attainment Levels in Illinois (Age 25+)
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

Chart showing the health insurance coverage by age and sex in Illinois from the 2024 American Community Survey (ACS).
Source: U.S. Census Bureau, ACS 1-Year Estimates (2024)

According to the , 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:

Uninsured Rates by Age and Sex in Illinois
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

Treemap showing the breakdown of U.S. citizenship status and nativity in 2024 for Illinois, based on American Community Survey (ACS) Estimates.
Source: U.S. Census Bureau, ACS 1-Year Estimates (2024)

According to the , 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

Chart showing how people commute to work in Illinois based on 2024 U.S. Census Bureau ACS data on transportation methods.
Source: U.S. Census Bureau, ACS 1-Year Estimates (2024)

According to the , here’s how people in Illinois commute to work:

Commuting Methods in Illinois
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%