List of Largest Cities in Illinois

  • Post category:Regions
  • Post last modified:October 9, 2021

Illinois is a state in the United States, is located in the Midwestern region of the country. It is the fifth most populated state (12,88,135 estimated) and the 25th biggest by area in the country (149,998 km2 at the density of 89 per km2).

Springfield is the state capital and the sixth biggest city in Illinois. With a population of 2,718,782 and a population density of 4,610 persons per km2 on a total area of 587 km2, Chicago is the biggest city in Illinois and the third-largest in the United States. Cicero city has the greatest population density of 5,536 people per square kilometer in a 15-square-kilometer area.

RankNamePopulationArea (km²)Density
(Inhabitants/km²)
County
1Chicago2,718,7825894,610Cook
2Aurora199,9631161,718Kane
3Rockford150,251164915Winnbago
4Joliet147,806162910Will
5Naperville144,8641001,447DuPage
6Springfield117,006154757Sangamon
7Peoria116,513124937Peoria
8Elgin110,145961,140Kane
9Waukegan88,826611,448Lake
10Cicero84,103155,536Cook
11Champaign83,424581,426Champaign
12Bloomington78,902701,117McLean
13Arlington Heights75,994421,768Cook
14Evanston75,570203,750Cook
15Schaumburg74,907491,506Cook
16Decatur74,710109683Macon
17Bolingbrook73,936621,184Will
18Palatine69,350351,966Cook
19Skokie65,176262,500Cook
20Des Plaines58,918361,592Cook
21Orland Park58,590561,032Cook
22Tinley Park57,282411,380Cook
23Oak Lawn57,073222,570Cook
24Berwyn56,758105,614Cook
25Mount Prospect54,771262,043Cook

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