 The Promised Land State Park-Whittaker Lodge District and Promised Land State Park-Bear Wallow Cabins are listed on the National Register of Historic Places.According to the United States Census Bureau, the township has a total area of 39.5 square miles (102.3 km²), of which, 34.1 square miles (88 km²) of it is land and 5.4 square miles (14 km²) of it (13.67%) is water.As of the census of 2010, there were 3,312 people, 1,455 households, and 1,008 families residing in the township.