Resolve ENT

About Chicago

Chicago ( (listen) shih-KAH-goh, locally also shih-KAW-goh; Miami-Illinois: Shikaakwa; Ojibwe: Zhigaagong) is the most populous city in the U.S. state of Illinois and the third-most populous in the United States after New York City and Los Angeles. With a population of 2,746,388 in the 2020 census, it is also the most populous city in the Midwest. As the seat of Cook County, the second-most populous county in the U.S., Chicago is the center of the Chicago metropolitan area, the 39th-largest city in the world as of 2018. On the shore of Lake Michigan, Chicago was incorporated as a city in 1837 near a portage between the Great Lakes and the Mississippi River watershed. It grew rapidly in the mid-19th century; by 1860, Chicago was the youngest U.S. city to exceed a population of 100,000.