Illinois - the state in the Midwest. The territory is 140,998 km ². Population - 12,910,409 people, is fifth on the number of state residents. The capital of the Idaho is Springfield, the largest city - Chicago, other cities: Aurora, Rockford, Jolie. Official name - "Land of Lincoln" (English Land of Lincoln), and "State of the Prairie" (English Prairie State). The official motto - of the state is state sovereignty, national union. Staff located in the Central Valley, and 60% of its territory is covered by prairie, the rest is occupied by hills. It has borders with Wisconsin, the north-east by Lake Michigan, bordered by Indiana in the east and south-east, Kentucky - in the south, c Iowa and Missouri to the west. The southern boundary runs along the Ohio River, west and south-west - on the Mississippi River. Much of the southern section of the border with Indiana is on the Wabash River.