 The population density was 36 people per square mile (14/km²).There were 19,893 housing units at an average density of 18 per square mile (7/km²).The racial makeup of the county was 98.11% White, 0.60% Black or African American, 0.23% Native American, 0.30% Asian, 0.01% Pacific Islander, 0.14% from other races, and 0.61% from two or more races.