 The Lawrence L. Knoebel Covered Bridge, Kreigbaum Covered Bridge, and Richards Covered Bridge are listed on the National Register of Historic Places.According to the United States Census Bureau, the township has a total area of 18.5 square miles (47.8 km²), all of it land.As of the census of 2000, there were 3,764 people, 1,497 households, and 1,121 families residing in the township.