As of the census of 2000, there were 4,515 people, 1,704 households, and 1,284 families living in the township. The population density was 236.0 people per square mile (91.1/km2). There were 1,769 housing units at an average density of 92.5/sq mi (35.7/km2). The racial makeup of the township was 98.47% White, 0.18% African American, 0.09% Native American, 0.35% Asian, 0.07% Pacific Islander, 0.13% from other races, and 0.71% from two or more races. Hispanic or Latino of any race were 0.58% of the population.