Chicago, IL

Chicago listen, locally also , officially the City of Chicago, is the most populous city in Illinois and the third most populous city in the United States. As of the 2017 census-estimate, it has a population of 2,716,450, which makes it the most populous city in the Midwestern United States. Chicago is the county seat of Cook County, the second most populous county in the United States, and the principal city of the Chicago metropolitan area, which is often referred to as "Chicagoland. Source: Wikipedia