As of the census of 2000, there were 21,805 people, 8,739 households, and 6,248 families residing in the township. The population density was 1,196.9 people per square mile (462.1/km2). There were 8,995 housing units at an average density of 493.7/sq mi (190.6/km2). The racial makeup of the township was 93.55% White, 2.10% African American, 0.06% Native American, 2.16% Asian, 0.01% Pacific Islander, 1.02% from other races, and 1.10% from two or more races. Hispanic or Latino of any race were 2.89% of the population.