Top 10 Cities of Illinois by Population
Chicago
Population: 2,731,585 2025-07-01
- Area: 589.86 km² 227.75 mi²
- Density: 4,631 inh./km² 11,994 inh./mi²
- Growth: -0.1% per year
Related pages on »City Population«
Aurora
Population: 181,505 2025-07-01
- Area: 117.19 km² 45.25 mi²
- Density: 1,549 inh./km² 4,011 inh./mi²
- Growth: +0.1% per year
Related pages on »City Population«
Naperville
Population: 153,114 2025-07-01
- Area: 101.96 km² 39.37 mi²
- Density: 1,502 inh./km² 3,889 inh./mi²
- Growth: +0.5% per year
Related pages on »City Population«
Joliet
Population: 152,241 2025-07-01
- Area: 171.61 km² 66.26 mi²
- Density: 887 inh./km² 2,298 inh./mi²
- Growth: +0.2% per year
Related pages on »City Population«
Rockford
Population: 147,384 2025-07-01
- Area: 169.37 km² 65.39 mi²
- Density: 870 inh./km² 2,254 inh./mi²
- Growth: -0.2% per year
Related pages on »City Population«
- Rockford city
- Rockford urban area
- Ogle county
- Winnebago county
- Rockford - Freeport - Rochelle combined statistical area
- Burritt township
- Cherry Valley township
- Owen township
- Rockford township
- Scott township
- Winnebago township
- Rochelle micropolitan statistical area
- Rockford metropolitan statistical area
Elgin
Population: 115,476 2025-07-01
- Area: 99.08 km² 38.25 mi²
- Density: 1,166 inh./km² 3,019 inh./mi²
- Growth: +0.1% per year
Related pages on »City Population«
Springfield
Population: 112,989 2025-07-01
- Area: 158.84 km² 61.33 mi²
- Density: 711 inh./km² 1,842 inh./mi²
- Growth: -0.3% per year
Related pages on »City Population«
Peoria
Population: 110,920 2025-07-01
- Area: 124.81 km² 48.19 mi²
- Density: 889 inh./km² 2,302 inh./mi²
- Growth: -0.4% per year
Related pages on »City Population«
Champaign
Population: 91,195 2025-07-01
- Area: 59.64 km² 23.03 mi²
- Density: 1,529 inh./km² 3,960 inh./mi²
- Growth: +0.6% per year
Related pages on »City Population«
Waukegan
Population: 87,940 2025-07-01
- Area: 62.84 km² 24.26 mi²
- Density: 1,400 inh./km² 3,625 inh./mi²
- Growth: -0.3% per year
