Illinois is a state located in the midwestern region of the United States. It is the 25th largest state at 57,915 square miles and the 5th most populated with over 12.8 million residents. O'Hare International Airport has been ranked as one the worlds busiest airports. The majority of the state's population lives in Chicago. Ronald Regan is the only U.S. president who was born and raised in Illinois.
Fun Facts About Illinois