 Waterville Township as organized in 1858, and named after Waterville, Minnesota.According to the United States Census Bureau, the township has a total area of 33.8 square miles (87.5 km²), of which 30.4 square miles (78.7 km²) of it is land and 3.4 square miles (8.8 km²) of it (10.07%) is water.As of the census of 2000, there were 742 people, 265 households, and 214 families residing in the township.