People

Population

Median Household Income$83,498 (vs Illinois $85,562)
Population5,182,090 people
Total Town Population5,170,573 people

Age & Family

Median age38.0 years (vs Illinois 39.1y)

Diversity

Diversity Index72.2%

Sources: Census ACS 5-Year 2024 — county-level query  ·  Refreshed 2026-04-28