 The population density was 3,913.6 people per square mile (1,509.8/km²).The 4,258 housing units averaged 1,852.8 per square mile (714.8/km²).The racial makeup of the city was 98.78% White, 0.32% African American, 0.08% Native American, 0.44% Asian, 0.07% from other races, and 0.31% from two or more races.