 The population at the 2010 Census was 1,064, down from 1,079 at the 2000 census.According to the United States Census Bureau, the township has a total area of 20.4 square miles (52.9 km²), of which, 18.2 square miles (47.3 km²) of it is land and 2.2 square miles (5.6 km²) of it (10.58%) is water.As of the census of 2000, there were 1,079 people, 401 households, and 322 families residing in the township.