 As of the 2010 U.S. Census, there were 85,182 people residing within the city., there were 34,089 households out of which 11.3% were vacant.In 2000, 32.8% had children under the age of 18 living with them, 55% were married couples living together, 15.3% had a female householder with no husband present, and 23.7% were non-families.