As of the census[6] of 2000, there were 4,037 people, 1,637 households, and 1,214 families residing in the township.

The population density was 135.1 inhabitants per square mile (52.2/km2).

There were 1,693 housing units at an average density of 56.7 per square mile (21.9/km2).

There were 1,637 households, out of which 29.9% had children under the age of 18 living with them, 62.1% were married couples living together, 8.9% had a female householder with no husband present, and 25.8% were non-families.

22.7% of all households were made up of individuals, and 9.2% had someone living alone who was 65 years of age or older.