 The population density was 320 people per square mile (107/km²).There were 58,919 housing units at an average density of 104 per square mile (40/km²).96.7% of the population were White, 0.8% Asian, 0.4% Black or African American, 0.4% Native American, 0.4% of some other race and 1.3% of two or more races.