 The Guy C. Irvine House was added to the National Register of Historic Places in 1978.According to the United States Census Bureau, the township has a total area of 40.0 square miles (103.5 km²), of which, 39.7 square miles (102.8 km²) of it is land and 0.3 square miles (0.7 km²) of it (0.68%) is water.As of the census of 2000, there were 2,712 people, 1,084 households, and 822 families residing in the township.