At the 2000 Census, there were 18,426 people, 6,830 households and 5,190 families residing in the county. The population density was 34 per square mile (13/km2). There were 7,491 housing units at an average density of 14 per square mile (5/km2). The racial makeup of the county was 96.70% White, 0.92% Native American, 0.37% Black or African American, 0.17% Asian, 0.01% Pacific Islander, 0.42% from other races, and 1.41% from two or more races. Hispanic or Latino of any race were 1.28% of the population.