 The population density was 3.5 people per square mile (1/km²).There were 4,349 housing units at an average density of 2 per square mile (1/km²).The racial makeup of the county was 95.23% White, 0.12% Black or African American, 0.93% Native American, 0.30% Asian, 0.10% Pacific Islander, 1.30% from other races, and 2.01% from two or more races.