 Fairview Park, Hannastown Farm, and Slickville Historic District are listed on the National Register of Historic Places.According to the United States Census Bureau, the township has a total area of 47.8 square miles (123.8 km²), of which, 47.1 square miles (122.1 km²) of it is land and 0.7 square miles (1.7 km²) of it (1.40%) is water.At the 2000 census there were 6,939 people, 2,932 households, and 1,976 families living in the township.