As of the census of 2010, there were 21,472 people, 7,972 households, and 3,329 families residing in the city. The population density was 2,632.2 people per square mile (1,016.7/km). There were 8,794 housing units at an average density of 1,019.4 per square mile (393.7/km). The racial makeup of the city was 90.4% White, 5.7% African American, 0.1% Native American, 2.4% Asian, 0.0% Pacific Islander, 0.9% from other races, and 0.6% from two or more races. Hispanic or Latino of any race were 2.2% of the population.