At the 2010 census, the township was 89.5% non-Hispanic White, 2.0% Black or African American, 0.1% Native American, 5.3% Asian, and 1.1% were two or more races. 2.0% of the population were of Hispanic or Latino ancestry
As of the census of 2000, there were 10,270 people, 3,758 households, and 2,848 families residing in the township. The population density was 1,248.8 people per square mile (482.4/km²). There were 3,862 housing units at an average density of 469.6/sq mi (181.4/km²). The racial makeup of the township was 93.77% White, 2.51% African American, 0.11% Native American, 2.78% Asian, 0.01% Pacific Islander, 0.20% from other races, and 0.61% from two or more races. Hispanic or Latino of any race were 1.08% of the population.
There were 3,758 households, out of which 34.2% had children under the age of 18 living with them, 68.2% were married couples living together, 6.0% had a female householder with no husband present, and 24.2% were non-families. 20.7% of all households were made up of individuals, and 10.6% had someone living alone who was 65 years of age or older. The average household size was 2.64 and the average family size was 3.08.
In the township the population was spread out, with 25.9% under the age of 18, 4.0% from 18 to 24, 24.0% from 25 to 44, 28.3% from 45 to 64, and 17.7% who were 65 years of age or older. The median age was 43 years. For every 100 females there were 93.0 males. For every 100 females age 18 and over, there were 88.7 males.
The median income for a household in the township was $95,548, and the median income for a family was $109,103. Males had a median income of $80,341 versus $40,955 for females. The per capita income for the township was $51,028.