 The population density was 647.9 people per square mile (250.1/km²).There were 4,959 housing units at an average density of 276.3 per square mile (106.7/km²).The racial makeup of the city was 97.19% White, 1.48% Black or African American, 0.17% Native American, 0.53% Asian, 0.02% Pacific Islander, 0.14% from other races, and 0.47% from two or more races.