Seal of the State of Illinois Badge

Illinois is a state in the Midwestern region of the United States. It borders Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash and Ohio rivers to its south. Of the fifty U.S. states, Illinois has the fifth-largest gross domestic product, the sixth-largest population, and the 25th-most land area. Its capital is Springfield.
  • Admitted to the Union: December 3, 1818 (21st)
  • Capital: Springfield
  • Largest city: Chicago
  • Elevation: 600 ft (180 m)
  • Country: United States
  • Before statehood: Illinois Territory
  • Largest county or equivalent: Cook
Data from: en.wikipedia.org