 The population density was 3,917.1 people per square mile (1,512.5/km²).There were 5,459 housing units at an average density of 1,487.3 per square mile (574.3/km²).The racial makeup of the city was 91.51% White, 0.74% African American, 0.70% Native American, 1.45% Asian, 0.27% Pacific Islander, 3.18% from other races, and 2.15% from two or more races.