Illinois City Populations

Information varies greatly depending on website. Be sure to double check.



Lake County (everything north of Lake Cook Road along Lake Michigan)


Mostly smaller towns or “villages” farther north out of Chicago following the train line, the Des Plaines River and the tollway/94.  Many have charming historic downtowns with a quaint community feel where families can get to know each other.  Lots of shopping & dining & mingling between the towns.


Buffalo Grove              43,062

Deerfield                       19,228


Gurnee                            30,826

Grayslake                     20,827

Highland Park                30,245


Lake Bluff                    5,878

Lake Forest                     19,450

Lake Villa                       8,741


Libertyville                    20,616

Lincolnshire                     7,905

Lindenhurst                    14,453


Mundelein                      31,596

Vernon Hills                    26,723

Wadsworth                     3,460


Cook County


Much larger towns or “cities” closer to Chicago & the airport and each is completely self-sufficient.


Arlington Heights            77,283

Chicago                       2,742,199

Mount Prospect               56,510

Naperville                      149,013

Palatine                            67,754


EB 4/23