 There were 6,934 housing units at an average density of 622.9 per square mile (240.5/km2).The racial makeup of the city was 97.31% White, 0.45% African American, 0.16% Native American, 0.96% Asian, 0.04% Pacific Islander, 0.25% from other races, and 0.83% from two or more races.Hispanic or Latino of any race were 1.25% of the population.