Illinois is a state in the Midwest region of the United States, known for the Great Lakes shoreline, prairie lands, and urban Chicago. It has a population of 12,778,100, making it the 6th most populated state in the country. The capital city is Springfield. Illinois has a diverse economy with financial services and manufacturing strength.
Data after 2023 is projected based on recent change
The racial composition of Illinois includes 63.33% White, 13.79% Black or African American, 7.25% other race, 5.82% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 8,038,517 | 63.33% |
| Black or African American | 1,750,417 | 13.79% |
| Two or more races | 1,172,661 | 9.24% |
| Other race | 920,254 | 7.25% |
| Asian | 738,308 | 5.82% |
| Native American | 66,990 | 0.53% |
| Native Hawaiian or Pacific Islander | 5,514 | 0.04% |
Married
Widowed
Divorced
Separated
Never Married
Illinois' average per capita income is $53,922. Household income levels show a median of $81,702. The poverty rate stands at 11.72%.
Name | Median | Mean |
|---|---|---|
| Married Families | $123,722 | $159,196 |
| Families | $103,504 | $136,221 |
| Households | $81,702 | $112,993 |
| Non Families | $48,992 | $69,842 |
Average Income
Median Household Income
Poverty Rate
Illinois’s population trends show a significant urban-suburban divide, with Cook County remaining the largest at over 5 million residents despite a 4.3% decline since 2020. While Chicago’s collar counties show mixed patterns—Kendall County growing 9.5% while DuPage County declined 1.2%—the most dramatic changes are occurring in rural areas. Alexander County and Gallatin County have experienced severe population losses of 14.8% and 11.6% respectively. The state’s population density varies extremely, from Cook County’s 5,331 people per square mile to rural counties with fewer than 20 people per square mile.