 The population density was 5.24/sqmi (2.02/km²).There were 6,840 housing units at an average density of 3.24/sqmi (1.25/km²).The racial makeup of the county was 97.99% White, 0.10% Black or African American, 0.70% Native American, 0.18% Asian, 0.01% Pacific Islander, 0.14% from other races, and 0.88% from two or more races.