Hanover Township is a township in Beaver County, Pennsylvania, United States. The population was 3,690 at the 2010 census.HistoryTwo historic sites in Hanover Township are listed on the National Register of Historic Places: the David Littell House, a nineteenth-century farmhouse, and the Recreational Demonstration Area part of Raccoon Creek State Park, which was built by the Civilian Conservation Corps during the Great Depression.GeographyHanover Township is located in southern Beaver County, Pennsylvania. It is bordered to the north by Greene Township and Raccoon Township, to the east by Independence Township, to the south by Hanover Township in Washington County, Pennsylvania, and to the west by Hancock County, West Virginia. The borough of Frankfort Springs, while separate from the township, is located along its southern border.