Change Indicator

Child population in Illinois

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Why This Indicator Matters

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Definition and Source



Number of children under age 18 (0-17) of children residing in respective Illinois geographic areas. City of Chicago is defined as Cook County and the five collar counties (DuPage, Kane, Lake, McHenry, and Will). 

Data Source

U.S. Census Bureau, Population Estimates Program.

Data for 2020 and 2021 are Vintage 2021 estimates. Data for 2010 through 2019 are Vintage 2020 population estimates. Each year the U.S. Census Bureau revises estimates back to the most recent Census. Therefore, data presented here may differ from previously published estimates. Figures for 2000 and 2010 represented revised population estimates for July 1, 2000 and July 1, 2010 - not actual Census counts from April 1, 2000 and April 1, 2010.


UPDATED - December 2022
GEOGRAPHY - Data reflect place of residence.
DATE - July 1 of reference year.

Last Updated

December 2023