Berkeley is a village located in Cook County, Illinois, United States. Incorporated in 1924, the population at the 2010 census was 5,209.The town has a commuter railroad station on Metra's Union Pacific/West Line with service to downtown Chicago.Berkeley is on Cook County's western border, 14 miles west of the Chicago Loop. With Interstates 290 and 294 forming its western and part of its southern boundary, and the Union Pacific Railroad and the large Proviso Railyard to the north, Berkeley has ready access to the metropolitan region. Yet the transportation corridors that make Berkeley accessible to distant places also serve to separate the village from its nearest neighbors, creating a small-town atmosphere.