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About Illinois

Illinois is a landlocked state in the eastern central US, the region is also known as the Midwestern United States. Illinois is bordered by Wisconsin to the north, Michigan via a water boundary in Lake Michigan to north east; Indiana to the east; Kentucky to south east, the Mississippi River formes a natural border with Missouri and Iowa to the west. The states nickname is "The Prairie State".

The region now known as Illinois was colonized by the French in the 1600s and was ceded to Britain in 1763, it was acquired by the US in 1783. Illinois entered the Union on 3rd December 1818 as the 21st state.

With an area of 149,998 km² (57,914 sq mi), Illinois is approximately half the size of Italy.
Highest natural elevation in the state is Charles Mound with 376 m (1,235 ft) in north west at the border to Wisconsin.

Illinois has a population of 12.9 million people (est. 2015), its capital city is Springfield, largest city is Chicago, and largest metro area is Chicago metropolitan area (Chicago-Naperville-Michigan City).

The detailed map below is showing the US state of Illinois with boundaries, the state capital Springfield,
major cities and populated places, streams and lakes, interstate highways, principal highways, and railroads.

Illinois Flag

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Reference Map of Illinois
Reference Map of Illinois State

Map is based on a state map of The National Atlas of the USA.
Cities and Towns in Illinois

The map shows the location of following cities and towns in Illinois:

Largest cities in Illinois with a population of more than 100,000:
Chicago (2.7 million), Aurora (198,000), Rockford (153,000), Joliet (147,000), Naperville (142,000), Springfield (117,000), Peoria (115,000), and Elgin (108,000).

Other cities and towns:
Alton, Arlington Heights, Beardstown, Belleville, Bloomington, Cairo, Canton, Carbondale, Carmi, Centralia, Champaign, Charleston, Chicago Heights, Danville, De Kalb, Decatur, Dixon, East St Louis, Effingham, Evanston, Freeport, Galesburg, Granite City, Harrisburg, Havana, Jacksonville, Jerseyville, Kankakee, Kewanee, La Salle, Lincoln, Macomb, Marion, Mattoon, Moline, Monmouth, Mount Vernon, Normal, North Chicago, Olney, Ottawa, Palatine, Pana, Pekin, Peru, Pittsfield, Pontiac, Quincy, Rantoul, Rock Island, Salem, Skokie, Sterling, Streator, Urbana, Vandalia, Waukegan, and West Frankfort.
More about Illinois and the United States:

Information about and searchable maps of:

Illinois's capital Springfield
The City of Chicago

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