As of the census of 2000, there were 18,678 people, 7,307 households, and 4,961 families residing in the city. The population density was 3,028.7 people per square mile (1,168.8/km2). There were 7,562 housing units at an average density of 1,226.2 per square mile (473.2/km2). The racial makeup of the city was 86.70% White, 1.39% African American, 0.37% Native American, 7.16% Asian, 0.18% Pacific Islander, 1.24% from other races, and 2.96% from two or more races. Hispanic or Latino of any race were 3.51% of the population.