There were 20,688 households out of which 9.9% had children under the age of 18 living with them, 45.8% were married couples living together, 5.0% had a female householder with no husband present, and 47.7% were non-families.
In the township the population was spread out with 10.7% under the age of 18, 3.5% from 18 to 24, 13.4% from 25 to 44, 17.8% from 45 to 64, and 54.5% who were 65 years of age or older.