City of Naperville, Illinois

Naperville is a city in DuPage and Will counties in the U.S. state of Illinois. Located 28 miles (45 km) west of Chicago, Naperville was founded in 1831. As of the 2010 census, the city had a population of 141,853, which was estimated to have increased to 147,682 by 2017. In a 2010 study assessing cities with populations exceeding 75,000.