As of the census[REF] of 2010, there were 20,460 people, 7,984 households, and 5,487 families residing in the city.
There were 7,984 households of which 33.5% had children under the age of 18 living with them, 55.3% were married couples living together, 9.1% had a female householder with no husband present, 4.3% had a male householder with no wife present, and 31.3% were non-families.