As of the census of 2000, there were 12,807 people, 4,906 households, and 3,836 families residing in the township. The population density was 470.5 people per square mile (181.7/km2). There were 5,084 housing units at an average density of 186.8/sq mi (72.1/km2). The racial makeup of the township was 98.04% White, 0.40% African American, 0.09% Native American, 0.62% Asian, 0.04% Pacific Islander, 0.23% from other races, and 0.59% from two or more races. Hispanic or Latino of any race were 0.92% of the population.