 The population density was 102 people per square mile (39/km²).There were 31,939 housing units at an average density of 46 per square mile (18/km²).The racial makeup of the county was 95.40% White, 0.89% Black or African American, 0.29% Native American, 1.04% Asian, 0.03% Pacific Islander, 0.75% from other races, and 1.61% from two or more races.