 The population density was 3,166.5 people per square mile (1,222.0/km2).There were 8,310 housing units at an average density of 1,299.1 per square mile (501.3/km2).The racial makeup of the city was 97.44% White, 0.54% African American, 0.16% Native American, 0.97% Asian, 0.01% Pacific Islander, 0.15% from other races, and 0.73% from two or more races.