Illinois
With a population of 13M, Illinois is the #6 most populous state in the U.S., spanning 102 counties. The median age of residents is 39.0 years. Households earn a median income of $83,390, 11% above the national median, with a poverty rate of 11.8% and a median home value of $263,300.
Demographics
Illinois has a population of 13M, making it the #6 most populous state. The median age is 39.0 years.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Language at Home
Geographic Mobility (Past Year)
Economy
The median household income in Illinois is $83,390, ranking #18 among all states. The poverty rate is 11.8% and unemployment stands at 5.8%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Illinois is $263,300. Renters pay a median of $1,274/mo and the homeownership rate is 67.1%.
Median Home Value Trend
Rankings →Household Type
Education
In Illinois, 37.8% of adults age 25+ hold a bachelor's degree or higher, which is 12.3% above the national average, ranking #13 out of 52 states.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Illinois is 77.6 years. 17.0% of adults report poor or fair health and 7.7% lack health insurance. 93.1% of residents have health insurance coverage (ACS). Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
13.5% of adults in Illinois smoke , 34.4% are obese , and 21.2% report excessive drinking. The drug overdose death rate is 30.1 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Illinois is 10.3 per 100,000 and the suicide rate is 11.1 per 100,000. Motor vehicle deaths occur at a rate of 9.6 per 100,000.
Homicide Rate Trend
Families & Children
14.8% of children in Illinois live in poverty and the infant mortality rate is 5.9 per 1,000 live births. The teen birth rate is 13.8 per 1,000 females age 15-19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Illinois is 66.7%. The mean commute time is 30.7 min, which is 11.1% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Illinois voted Democratic with a margin of 11.0%. The vote was 54.8% Dem / 43.8% Rep. Compared to 2020, the margin shifted 6.0 toward Republicans .
Vote Share Over Time
Counties in Illinois
Illinois has 102 counties. The highest median income county is DuPage County at $112,096.
Highest Income Counties
| 1 | DuPage County | $112,096 |
| 2 | Kendall County | $111,601 |
| 3 | Lake County | $110,416 |
| 4 | Will County | $109,984 |
| 5 | McHenry County | $104,802 |
| 6 | Kane County | $103,163 |
| 7 | Monroe County | $102,880 |
| 8 | Piatt County | $94,811 |
| 9 | Calhoun County | $93,203 |
| 10 | Grundy County | $92,235 |
Lowest Income Counties
| 102 | Pulaski County | $42,463 |
| 101 | Alexander County | $47,043 |
| 100 | Jackson County | $48,763 |
| 99 | McDonough County | $52,795 |
| 98 | Saline County | $53,117 |
| 97 | Hardin County | $54,271 |
| 96 | White County | $54,813 |
| 95 | Lawrence County | $55,324 |
| 94 | Wayne County | $55,521 |
| 93 | Union County | $55,728 |
All 102 Counties
About Illinois
All data comes from the U.S. Census Bureau's American Community Survey (ACS) 2024 5-Year Estimates. Values are estimates and subject to margin of error. For more information, see our methodology.