Map of the Day: Illinois population shifts

Much has been made about people leaving Illinois, though new data indicates many residents are also moving within the state.

The winner: Kendall County had the highest population increase in the state from 2020 to 2021.

• Kendall also showed significant growth in median household income.

The loser: Cook County lost 90,000 people, which still amounts to less than 2% of its total population.

• Big urban centers across the country suffered population loss over the last decade.

Zoom in: Other notable population shifts include:

• Brown County (western IL) had the highest percentage growth at 2.3% (200+ people).
• Alexander County (southern IL) had the worst with a 4% loss (100+ people).
• Will County (Collar County) stayed even, with a 0.1% increase.