Businesses and Places in Dekalb, Illinois

DeKalb is a city in DeKalb County, Illinois, United States. The population was 43,862 according to the 2010 census, up from 39,018 at the 2000 census. The city is named after decorated German American war hero Johann de Kalb, who died during the American Revolutionary War.
Phone Area Codes in Dekalb, IL: 779,815

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