2,398 square miles.
Its area is 57,914 square miles.
Libertyville, Illinois, USA - 9.1 square miles.
Springfield, Illinois, USA - 60.3 square miles.
Johnson County, Illinois, USA - 349 square miles.
Illinois' area is 57,900 square miles or 37,055,848.2 acres.
twenty eight
Cook County, Illinois, USA - 1,635 square miles.
Illinois is the 25th largest state in the United States in terms of land area, with approximately 57,914 square miles.
Illinois, USA - 57,918 square miles (USA's 25th largest state).
Illinois covers an area of 57,914 square miles.
Illinois is 390 miles long and 210 miles wide depending on where you stand, and has an area of 57,918 square miles, making it the 25th largest of the 50 states.