Hanover Township has a total area of 45.0 square miles and encompasses multiple Pennsylvania cities in Beaver County PA. The population was 3,690 at the 2010 census. Two 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.