 The population density was 401.8 people per square mile (155.1/km2).There were 2,558 housing units at an average density of 154.1 per square mile (59.5/km2).The racial makeup of the city was 98.47% White, 0.27% African American, 0.15% Native American, 0.39% Asian, 0.03% Pacific Islander, 0.03% from other races, and 0.66% from two or more races.