Illinois Demographics

The total population of Illinois is estimated to be 12.76 million with 6.31 million males (49.48%) and 6.44 million females (50.52%). There are 131,596 more females than males in Illinois.
The median household income in Illinois was $78,434 in 2021, which marked an an increase of 895(1.15%) from $77,539 in 2020. This income is 105.13% of the U.S. median household income of $74,606 (all incomes in 2022 inflation-adjusted dollars).
Per the latest American Community Survey by the Census Bureau, Illinois sees its highest median household income among householders in the age group of 45 to 64 years old, at $92,666. Overall, the median household income for the state of Illinois stands at $76,708.
In Illinois, the median income for all workers aged 15 years and older, regardless of work hours, was $48,807 for males and $32,877 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $67,800 for males and $54,544 for females.
In Illinois, the demographic landscape is diverse, spanning 7 distinct racial categories among households. Among these, Asian households have the highest median household income at $104,287, while Black or African American households represent the opposite end with the lowest median household income of $45,019.
In 2022, the population of Illinois was 12,582,032, a 0.82% decrease year-by-year from 2021. Previously, in 2021, Illinois's population was 12,686,469, a decline of 0.78% compared to a population of 12,786,580 in 2020.
The median age in Illinois is 38.5, as per 2021 ACS 5-Year Estimates. Of the total population, 18.51% were under the age of 15, 20.00% aged 15 to 29, 45.79% aged 30 to 64, 13.71% aged 65 to 84, and 1.99% were 85 years of age and older.
Racial distribution of Illinois population: 67.85% are White, 14.07% are Black or African American, 0.33% are American Indian and Alaska Native, 5.66% are Asian, 0.04% are Native Hawaiian and other Pacific Islander, 6.21% are some other race and 5.84% are multiracial.