Whitestown is a town in Boone County, Indiana, United States. The population was 10,187 at the 2020 census. The town is located near Interstate 65, approximately 22 miles (35 km) northwest of Downtown Indianapolis, and about 7 miles (11 km) from the northern city limits of Indianapolis, between exits 130 and 133. Since 2010, Whitestown has been the fastest-growing municipality in Indiana; its population increased more than threefold between the 2010 and 2020 Census tabulations.