As of the census of 2000, there were 4,619 people, 1,649 households, and 1,322 families residing in the township. The population density was . There were 1,714 housing units at an average density of . The racial makeup of the township was 98.20% White, 0.56% African American, 0.39% Native American, 0.11% Asian, 0.28% from other races, and 0.45% from two or more races. Hispanic or Latino of any race were 0.71% of the population.
There were 1,649 households, out of which 39.1% had children under the age of 18 living with them, 67.6% were married couples living together, 8.9% had a female householder with no husband present, and 19.8% were non-families. 15.3% of all households were made up of individuals, and 5.3% had someone living alone who was 65 years of age or older. The average household size was 2.80 and the average family size was 3.12.