Hopewell Township is a township in Beaver County, Pennsylvania, United States, and a suburb of Pittsburgh. The population was 12,593 at the 2010 census.GeographyHopewell Township is located along the southeast boundary of Beaver County. The township encloses the city of Aliquippa on three sides and the borough of South Heights on two. Where not shared with these two communities, the eastern boundary of the township follows the Ohio River.According to the United States Census Bureau, the township has a total area of 44.0km2, of which 43.4km2 is land and 0.6km2, or 1.40%, is water.Since 1987 Hopewell has been home to a 97.5acre RIDC industrial park.DemographicsAs of the census of 2000, there were 13,254 people, 5,446 households, and 3,926 families residing in the township. The population density was 783.7 people per square mile (302.6/km²). There were 5,636 housing units at an average density of 333.2/sq mi (128.7/km²). The racial makeup of the township was 91.81% White, 7.34% African American, 0.01% Native American, 0.32% Asian, 0.02% Pacific Islander, 0.05% from other races, and 0.45% from two or more races. Hispanic or Latino of any race were 0.49% of the population.