At the
2000 census, there were 12,254 people, 5,004 households, and 3,347 families in the township. The population density was . There were 5,293 housing units at an average density of . The
racial makeup of the township was 93.99% White, 2.60% African American, 0.12% Native American, 2.51% Asian, 0.01% Pacific Islander, 0.16% from other races, and 0.60% from two or more races. Hispanic or Latino of any race were 0.88%. There were 5,004 households, 33.3% had children under the age of 18 living with them, 54.6% were married couples living together, 9.2% had a female householder with no husband present, and 33.1% were non-families. 27.0% of households were made up of individuals, and 5.7% were one person aged 65 or older. The average household size was 2.43 and the average family size was 3.00. In the township the population was spread out, with 24.7% under the age of 18, 6.2% from 18 to 24, 39.3% from 25 to 44, 20.7% from 45 to 64, and 9.0% 65 or older. The median age was 36 years. For every 100 females there were 96.6 males. For every 100 females age 18 and over, there were 94.3 males. The median household income was $51,482 and the median family income was $58,804. Males had a median income of $44,233 versus $32,418 for females. The per capita income for the township was $26,139. About 4.5% of families and 6.4% of the population were below the
poverty line, including 6.9% of those under age 18 and 9.5% of those age 65 or over. ==Government and politics==