As of the census of 2000, there were 18,564 people, 6,921 households, and 4,893 families living in the county. The population density was 38 people per square mile (15/km²). There were 7,998 housing units at an average density of 17 per square mile (6/km²). The racial makeup of the county was 89.79% White, 6.51% Black or African American, 1.01% Native American, 0.39% Asian, 0.03% Pacific Islander, 0.79% from other races, and 1.48% from two or more races. 1.93% of the population were Hispanic or Latino of any race.