Identifiers: city · town · village
| Rank | Community | Population |
|---|---|---|
| 1 | Chicago (city), IL | 2,746,388 |
| 2 | Cicero (town), IL | 85,268 |
| 3 | Orland Park (village), IL | 58,703 |
| 4 | Oak Lawn (village), IL | 58,362 |
| 5 | Tinley Park (village), IL | 55,971 |
| 6 | Calumet City (city), IL | 36,033 |
| 7 | Burbank (city), IL | 29,439 |
| 8 | Lansing (village), IL | 29,076 |
| 9 | Chicago Heights (city), IL | 27,480 |
| 10 | Oak Forest (city), IL | 27,478 |
| 11 | Blue Island (city), IL | 22,558 |
| 12 | Darien (city), IL | 22,011 |
| 13 | South Holland (village), IL | 21,465 |
| 14 | Dolton (village), IL | 21,426 |
| 15 | Harvey (city), IL | 20,324 |
| 16 | Evergreen Park (village), IL | 19,943 |
| 17 | Homewood (village), IL | 19,463 |
| 18 | Matteson (village), IL | 19,073 |
| 19 | Alsip (village), IL | 19,063 |
| 20 | Palos Hills (city), IL | 18,530 |
Identifiers: city · town · village
| Rank | Community | Population |
|---|---|---|
| 1 | Chicago (city), IL | 2,746,388 |
| 2 | Cicero (town), IL | 85,268 |
| 3 | Orland Park (village), IL | 58,703 |
| 4 | Oak Lawn (village), IL | 58,362 |
| 5 | Tinley Park (village), IL | 55,971 |
| 6 | Calumet City (city), IL | 36,033 |
| 7 | Burbank (city), IL | 29,439 |
| 8 | Lansing (village), IL | 29,076 |
| 9 | Chicago Heights (city), IL | 27,480 |
| 10 | Oak Forest (city), IL | 27,478 |
| 11 | Blue Island (city), IL | 22,558 |
| 12 | Darien (city), IL | 22,011 |
| 13 | South Holland (village), IL | 21,465 |
| 14 | Dolton (village), IL | 21,426 |
| 15 | Harvey (city), IL | 20,324 |
| 16 | Evergreen Park (village), IL | 19,943 |
| 17 | Homewood (village), IL | 19,463 |
| 18 | Matteson (village), IL | 19,073 |
| 19 | Alsip (village), IL | 19,063 |
| 20 | Palos Hills (city), IL | 18,530 |