As of the census of 2000, there were 3,645 people, 1,358 households, and 1,029 families residing in the township. The population density was 172.2 people per square mile (66.5/km). There were 1,439 housing units at an average density of 68.0/sq mi (26.3/km). The racial makeup of the township was 98.02% White, 0.91% African American, 0.08% Native American, 0.27% Asian, 0.16% from other races, and 0.55% from two or more races. Hispanic or Latino of any race were 0.30% of the population.