 The population density was 735.6 inhabitants per square mile (284.0/km2).There were 8,517 housing units at an average density of 308.5 per square mile (119.1/km2).The racial makeup of the city was 92.88% White, 0.28% African American, 0.62% Native American, 2.40% Asian, 0.11% Pacific Islander, 0.75% from other races, and 2.96% from two or more races.