Chicago is the most populous city in the U.S. state of Illinois and in the Midwestern United States. With a population of 2,746,388, as of the 2020 census, it is the third-most populous city in the United States after New York City and Los Angeles. As the seat of Cook County, the second-most populous county in the U.S., Chicago is the center of the Chicago metropolitan area, often colloquially called "Chicagoland" and home to 9.6 million residents.
AdFind the top-rated and best-reviewed tours and activities in ChicagoLoop for 2025. Don't worry if your plans change. We offer 24/7 customer service in multiple languages.
Destinations: Centennial Wheel, Art Institute of Chicago, 360 Chicago
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