As of the census of 2000, there were 20,167 people, 8,123 households, and 5,255 families residing in the city. The population density was 3,515.9 people per square mile (1,356.5/km2). There were 8,313 housing units at an average density of 1,449.3 per square mile (559.2/km2). The racial makeup of the city was 92.63% White, 1.28% African American, 0.57% Native American, 0.82% Asian, 0.01% Pacific Islander, 2.80% from other races, and 1.90% from two or more races. Hispanic or Latino of any race were 6.42% of the population.