As of the census of 2000, there were 12,271 people, 4,704 households, and 3,085 families residing in the township. The population density was 603.2 people per square mile (232.9/km). There were 4,924 housing units at an average density of 242.1/sq mi (93.5/km). The racial makeup of the township was 93.93% White, 3.50% African American, 0.02% Native American, 1.59% Asian, 0.05% Pacific Islander, 0.30% from other races, and 0.62% from two or more races. Hispanic or Latino of any race were 0.72% of the population.