Illinois was the 21st state to join the United States of America. Illinois officially joined on December 3rd, 1818. The capital city is Springfield, but the largest city is Chicago.
Here are some official state symbols to help you get to know Illinois better.
Car Rental Illinois
Did you know that Illinois is the 25th biggest state in the USA? The territory spans 57,918 square miles. Drive along the Illinois River and visit places like Charles Mound and Rend Lake.