According to the 2010 census, the township has a total area of 36.56 square miles (94.7 km2), of which 36.13 square miles (93.6 km2) (or 98.82%) is land and 0.43 square miles (1.1 km2) (or 1.18%) is water.
Washington (no longer exists due to another town in the state with the name). The village contained 48 lots. It was laid out in 1836 & it had a small general store,a few cabins,blacksmith shop and a school house nearby which was also used to hold church services. The village never grew & ceased to exist.
Vienna was laid out by Zach Gilbert, Benjamin Clark & a Mr Bacon on June 9, 1837. Due to there being another town in the state with this name it was changed to Astoria.