Discover all about Illinois, including its iconic flag, detailed map, vibrant cities, and what truly makes the Prairie State ...

Illinois’ retiree population is growing. Currently, the median age is 39.4, five years older than in 2000, according to the ...

Illinois lost residents from 2020 to 2024: US Census Bureau. Alexander, Pulaski, Gallatin, Henderson and Greene lost the most. See population trends by county in map ...

While Illinois lost population as a whole in recent years, 15 of its 102 counties gained residents from 2020 to 2024, according to data from the U.S. Census Bureau.

Democrats in the Illinois General Assembly released draft versions of the proposed legislative maps created in the redistricting process Friday evening.

Illinois is one of three states to lose population between 2010 and 2020, falling from 12,830,632 people to 12,812,508, and will lose a House seat when the new district maps are drawn.

Illinois added more residents over the last year than any other state in the Midwest, according to data released by the U.S. Census Bureau.

Illinois remains the nation's six-most-populous state, behind Pennsylvania. "Today, the U.S. Census Bureau announced our state's population is growing," Gov JB Pritzker said in a statement.

CHANGE Illinois, which supports independent map making, said its analysis also found large differences in population between districts.

You can see the center of Illinois’ current population on the interactive map here: The spot is technically part of Wauponsee Township.

An undercount in the 2020 census missed 46,400 Illinois residents living in group homes, the state announced Wednesday, potentially offsetting last year's reported population decline.

Chicago Tribune editorial warns of Illinois' aging population, citing outmigration of young adults and declining birth rates as threats to the state's economic future.