Chicago city in what state
Chicago is in Illinois, in the Midwestern United States. It is the state’s largest city and is located along Lake Michigan.
Location and boundaries
Chicago is not the capital of Illinois; Springfield is. The city’s location on the Great Lakes helped shape its role in transportation and commerce.
Geographic context
Chicago is in northeastern Illinois, on the southwestern shore of Lake Michigan. Its position connects the city to the Great Lakes and inland waterways. When answering a location question, separate the city, state, and capital: Chicago is a city in Illinois; Springfield is the capital.

Using this location information
Illinois is in the Midwest and borders Lake Michigan. Chicago’s location helped it become a major transportation hub linking eastern and western parts of the United States. For state-level questions, remember that a city’s size or fame does not make it the state capital.
Details to verify
Use this as a general geographic reference. Municipal boundaries, travel details, and government services can change; check the relevant official local source for current decisions.
Explore the parent hub: World Geography and Place Guides