 According to the United States Census Bureau, the township has a total area of 55.2 square miles (143.1 km2).55.2 square miles (143.0 km2) of it is land and 0.04 square miles (0.1 km2) of it (0.04%) is water.As of the census of 2000, there were 771 people, 322 households, and 226 families residing in the township.The population density was 14.0 people per square mile (5.4/km2).