Top 10 Cities of Illinois by Population

Chicago

Population: 2,746,388 2020-04-01

  • Area: 589.82 km² 227.73 mi²
  • Density: 4,656 inh./km² 12,060 inh./mi²
  • Growth: +0.2% per year
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Aurora

Population: 180,542 2020-04-01

  • Area: 116.61 km² 45.02 mi²
  • Density: 1,548 inh./km² 4,010 inh./mi²
  • Growth: -0.9% per year
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Joliet

Population: 150,362 2020-04-01

  • Area: 167.10 km² 64.52 mi²
  • Density: 900 inh./km² 2,331 inh./mi²
  • Growth: +0.2% per year
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Naperville

Population: 149,540 2020-04-01

  • Area: 101.21 km² 39.08 mi²
  • Density: 1,478 inh./km² 3,827 inh./mi²
  • Growth: +0.5% per year
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Rockford

Population: 148,655 2020-04-01

  • Area: 167.17 km² 64.54 mi²
  • Density: 889 inh./km² 2,303 inh./mi²
  • Growth: -0.3% per year
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Elgin

Population: 114,797 2020-04-01

  • Area: 98.49 km² 38.03 mi²
  • Density: 1,166 inh./km² 3,019 inh./mi²
  • Growth: +0.6% per year
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Springfield

Population: 114,394 2020-04-01

  • Area: 158.35 km² 61.14 mi²
  • Density: 722 inh./km² 1,871 inh./mi²
  • Growth: -0.2% per year
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Peoria

Population: 113,150 2020-04-01

  • Area: 124.23 km² 47.96 mi²
  • Density: 911 inh./km² 2,359 inh./mi²
  • Growth: -0.2% per year
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Waukegan

Population: 89,321 2020-04-01

  • Area: 62.74 km² 24.23 mi²
  • Density: 1,424 inh./km² 3,687 inh./mi²
  • Growth: +0.0% per year
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Champaign

Population: 88,302 2020-04-01

  • Area: 59.38 km² 22.93 mi²
  • Density: 1,487 inh./km² 3,851 inh./mi²
  • Growth: +0.8% per year
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