 The population density was 1,018.9 per square mile (393.4/km²).There were 21,796 housing units at an average density of 494.6 per square mile (191.0/km²).The racial makeup of the city was 93.32% White, 4.07% African American, 0.79% Asian, 0.24% American Indian/Alaska Native, 0.02% Native Hawaiian/Pacific Islander, 0.34% some other race, and 1.06% two or more races.