[2] The Dellville Covered Bridge was added to the National Register of Historic Places in 1980.

As of the census[5] of 2000, there were 3,329 people, 1,206 households, and 943 families residing in the township.

There were 1,283 housing units at an average density of 61.4 per square mile (23.7/km2).

There were 1,206 households, out of which 36.9% had children under the age of 18 living with them, 67.3% were married couples living together, 6.8% had a female householder with no husband present, and 21.8% were non-families.

17.9% of all households were made up of individuals, and 5.1% had someone living alone who was 65 years of age or older.