 There were 16,053 housing units at an average density of 28.1 per square mile (10.8 square kilometers).97.5% of the population were White, 0.5% Native American, 0.5% Asian, 0.3% Black or African American, 0.1% of some other race and 1.1% of two or more races.1.0% were Hispanic or Latino (of any race).