Facts and Figures
Area, 56,400 sq mi (146,076 sq km). Pop. (2010) 12,830,632, a 3.3% increase since the 2000 census. Capital, Springfield. Largest city, Chicago. Statehood, Dec. 3, 1818 (21st state). Highest pt., Charles Mound, 1,235 ft (377 m); lowest pt., Mississippi River, 279 ft (85 m). Nicknames, Inland Empire; Prairie State. Motto, State Sovereignty—National Union. State bird, cardinal. State flower, native violet. State tree, white oak. Abbr., Ill.; IL
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