 According to the United States Census Bureau, the township has a total area of 7.8 square miles (20.2 km2).7.1 square miles (18.4 km2) of it is land and 0.7 square miles (1.8 km2) of it (8.72%) is water.As of the census of 2000, there were 993 people, 400 households, and 312 families residing in the township.The population density was 139.5 people per square mile (53.8/km2).