 According to the United States Census Bureau, the township has a total area of 7.9 square miles (20.6 km2).7.6 square miles (19.8 km2) of it is land and 0.3 square miles (0.8 km2) of it (3.90%) is water.As of the census of 2000, there were 1,633 people, 642 households, and 471 families residing in the township.The population density was 213.6 people per square mile (82.5/km2).