As of the census of 2000, there were 29,846 people, 11,476 households, and 8,354 families residing in the county. The population density was 18/km2 (46/sq mi). There were 16,761 housing units at an average density of 10/km2 (26/sq mi). The racial makeup of the county was 98.83% White, 0.43% Black or African American, 0.07% Native American, 0.19% Asian, 0.02% Pacific Islander, 0.09% from other races, and 0.37% from two or more races. 0.44% of the population were Hispanic or Latino of any race. 36.1% were of German, 22.9% identified as American, 9.6% English and 8.8% Irish ancestry.