At the 2000 census there were 20,044 people, 8,144 households, and 5,399 families living in the city. The population density was 1,387.2 people per square mile (535.6/km). There were 8,452 housing units at an average density of 584.9 per square mile (225.8/km). The racial makeup of the city was 92.89% White, 2.33% African American, 0.21% Native American, 1.81% Asian, 0.02% Pacific Islander, 1.13% from other races, and 1.60% from two or more races. Hispanic or Latino of any race were 3.27%.