 The population density was 160/sqmi (61.9/km²).There were 23,438 housing units at an average density of 67.7/sqmi (26.2/km²).The racial makeup of the county was 96.8% white, 0.9% black or African American, 0.7% Asian, 0.2% American Indian, 0.3% from other races, and 1.1% from two or more races.