 The population density was 2,016.1 people per square mile (778.7/km²).There were 5,638 housing units at an average density of 558.5 per square mile (215.7/km²).The racial makeup of the city was 96.57% White, 0.31% African American, 0.28% Native American, 0.66% Asian, 0.18% Pacific Islander, 0.90% from other races, and 1.10% from two or more races.