[2] The St. Mary's Covered Bridge was listed on the National Register of Historic Places in 1980.

[3] According to the United States Census Bureau, the township has a total area of 50.8 square miles (132 km2), all land.

At the 2000 census there were 1,632 people in 580 households, including 436 families, in the township.

[5] There were 580 households, 34.0% had children under the age of 18 living with them, 65.2% were married couples living together, 5.5% had a female householder with no husband present, and 24.8% were non-families.

21.2% of households were made up of individuals, and 9.1% were one person aged 65 or older.