 The Bridge in Nicholson Township was listed on the National Register of Historic Places in 1988.According to the United States Census Bureau, the township has a total area of 23.1 square miles (59.8 km²), of which, 22.8 square miles (59 km²) of it is land and 0.3 square miles (1 km²) of it (1.3%) is water.As of the census of 2010, there were 1,385 people, 573 households, and 393 families residing in the township.