As of the 2000 United States Census there were 4,267 people, 1,494 households, and 1,154 families residing in the township. The population density was 157.3 people per square mile (60.7/km2). There were 2,030 housing units at an average density of 74.9 per square mile (28.9/km2). The racial makeup of the township was 97.96% White, 0.16% African American, 0.21% Native American, 0.47% Asian, 0.23% from other races, and 0.96% from two or more races. Hispanic or Latino of any race were 2.09% of the population.