At the 2000 census there were 51,884 people in 17,196 households, including 12,518 families, in the city. The population density was 2,386.7 people per square mile (921.5/km). There were 17,968 housing units at an average density of 826.5 per square mile (319.1/km). The racial makeup of the city was 77.89% Caucasian, 5.99% African American, 0.58% Native American, 7.19% Asian, 0.19% Pacific Islander, 4.71% from other races, and 3.43% from two or more races. Hispanic or Latino of any race were 9.47%.