According to the United States Census Bureau, the township has a total area of 31.5 square miles (81.5 km²), of which, 30.4 square miles (78.8 km²) of it is land and 1.0 square miles (2.6 km²) of it (3.21%) is water.
According to the United States Census Bureau, the township has a total area of 31.5 square miles (81.5 km²), of which, 30.4 square miles (78.8 km²) of it is land and 1.0 square miles (2.6 km²) of it (3.21%) is water.