Cook County Map
The County of Cook is located in the State of Illinois. Find directions to Cook County, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. According to the 2020 US Census the Cook County population is estimated at 5,108,284 people. The Cook County time zone is Central Daylight Time which is 6 hours behind Coordinated Universal Time (UTC).
Nearby counties include DuPage County, Kane County, Lake County, McHenry County, Will County, Lake County, Porter County, Berrien County.
Top cities include Chicago, Cicero, Arlington Heights, Evanston, Schaumburg