As of the 2010 census, its population was 35,221 and it contained 12,892 housing units. The western part of the United States Department of Energy's Fermilab is at the township's eastern edge (formerly in the village of Weston), although most of the facility is in neighboring Winfield Township in DuPage County.
As of the 2010 census, the town had a population of 35,221 and featured 12,892 residential units. The western part of the Fermilab site, formerly part of Weston village, borders the township's eastern edge, while most of the facility is located in adjacent Winfield Township within DuPage County.