Chicago is the most populous city in the U.S. state of Illinois and in the Midwestern United States. Located on the western shore of Lake Michigan, it is the third-most populous city in the United States, with a population of 2.74 million at the 2020 census. The Chicago metropolitan area has approximately 9.62 million residents according to the 2020 census and is the third-largest metropolitan statistical area in the country and part of the fourth-largest combined statistical area in the United States, spanning 19 counties in three states and with a population of nearly 10 million. Chicago is the county seat of Cook County, the second-most populous county in the U.S.
- Country
- United States
- Inception
- March 4, 1837
- Website
- https://www.chicago.gov/, https://www.cityofchicago.org, http://cityofchicago.org/
