DuPage County, Illinois

DuPage County is a county located in the U.S. state of Illinois. Its county seat is the city of Wheaton. This county is part of the Chicago metropolitan area. According to the 2010 census, it has a population of 916,924, which is an increase of 1.4% from 904,161 in 2000. It is the second most populous county in Illinois after Cook County, which borders it to the north and east; the two counties account for half of the state’s population.

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