Metropolitan Areas / Illinois (IL)
Illinois - Metropolitan Areas
Total areas: 5 (population > 250,000).
| Area | Type | Population |
|---|---|---|
| Chicago-Naperville-Elgin, IL-IN | Metropolitan Area | 9,359,555 |
| St. Louis, MO-IL | Metropolitan Area | 2,809,414 |
| Davenport-Moline-Rock Island, IA-IL | Metropolitan Area | 381,864 |
| Peoria Metro Area, IL | Metropolitan Area | 365,773 |
| Rockford Metro Area, IL | Metropolitan Area | 336,605 |