As of the census of 2000, there were 40,543 people, 15,416 households, and 11,068 families living in the county. The population density was 99 people per square mile (38/km2). There were 16,577 housing units at an average density of 40 per square mile (16/km2). The racial makeup of the county was 95.99% White, 2.19% Black or African American, 0.26% Native American, 0.38% Asian, 0.20% from other races, and 0.97% from two or more races. 0.66% of the population were Hispanic or Latino of any race. 29.3% were of American, 22.2% German, 12.1% English and 10.9% Irish ancestry according to 2000 census.