As of the census of 2000, there were 3,906 people, 1,458 households, and 1,077 families residing in the township. The population density was 160.6 people per square mile (62.0/km2). There were 1,552 housing units at an average density of 63.8/sq mi (24.6/km2). The racial makeup of the township was 99.10% White, 0.20% African American, 0.03% Native American, 0.15% Asian, 0.10% from other races, and 0.41% from two or more races. Hispanic or Latino of any race were 0.36% of the population.