What the latest Census data shows for Illinois
Nationwide, the population grew by 1.8 million, or 0.5%, the slowest rate since the historically low growth rate of 0.2% during the COVID pandemic in 2021. Illinois' population grew .001% through mid-2025, reflecting a national trend of low growth due mainly to a historic decrease in international immigration. Illinois population stays flat despite drop in international immigration Illinois' population stayed fairly flat into 2025, following a national trend of low growth due to a historic decrease in net international immigration, according to new figures released on Tuesday by the Census Bureau. Read Story © Copyright 2026 Chicago Tribune. All rights reserved. 1000 Albion Avenue | Schaumburg, IL 60193-4549 Unsubscribe