Map of Illinois map is a state located in the eastern north-central region of the United States, bordered by Wisconsin to the north, Michigan via a water boundary in Lake Michigan to the northeast, Indiana to the east, Kentucky to the south, and Iowa and Missouri to the west(Map of the State of Illinois, USA, ). The state covers an area of 57,914 square miles and is the 25th largest state in the country(Illinois (IL) Map, Map of Illinois USA, )