[5] The Quaker Bridge was listed on the National Register of Historic Places in 1988.

As of the census[7] of 2000, there were 4,004 people, 1,590 households, and 1,160 families residing in the township.

There were 1,646 housing units at an average density of 116.3 per square mile (44.9/km2).

There were 1,590 households, out of which 27.9% had children under the age of 18 living with them, 64.2% were married couples living together, 6.0% had a female householder with no husband present, and 27.0% were non-families.

24.3% of all households were made up of individuals, and 14.4% had someone living alone who was 65 years of age or older.