Naperville is a city in the U.S. state of Illinois, whose territory located mostly in DuPage County, but also partly in Will County. The city Naperville belongs to the Chicago metropolitan area. Naperville have round about 142.000 inhabitants. Naperville is the fourth largest city in Illinois after Chicago and the neighboring cities oft Aurora and Rockford.
picture: John D. Buell/commons.wikimedia.org/wiki/File:City_of_Naperville_City_Hall_main_entrance.jpg