At the 2000 census there were 21,144 people in 4,620 households, including 4,088 families, in the city. The population density was 7,330.8 inhabitants per square mile (2,834.6/km). There were 4,724 housing units at an average density of 1,637.8 per square mile (633.3/km). The racial makeup of the city was 40.61% White, 0.38% African American, 1.57% Native American, 8.43% Asian, 0.18% Pacific Islander, 43.98% from other races, and 4.84% from two or more races. Hispanic or Latino of any race were 86.03%.