As of the census of 2000, there were 4,379 people, 1,438 households, and 1,207 families residing in the township. The population density was 147.6 people per square mile (57.0/km). There were 1,490 housing units at an average density of 50.2/sq mi (19.4/km). The racial makeup of the township was 97.44% White, 0.21% African American, 0.30% Native American, 0.55% Asian, 0.32% from other races, and 1.19% from two or more races. Hispanic or Latino of any race were 1.05% of the population.