The United States Census Bureau estimates that the population of Illinois was 12,880,580 on July 1, 2014, a 0.39% increase since the 2010 United States Census. Illinois is the most populous state in the Midwest region. Chicago, the third most populous city in the United States, is the center of the Chicago metropolitan area. Chicagoland, as this area is known locally, comprises only 8% of the land area of the state, but contains 65% of the state's residents.

For Population Density Map of Illinois Map, Direction, Location and Where Addresse


Illinois Racial Breakdown of Population

Illinois Historical Population

Largest Cities Map of Illinois and Population





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