 The population density was 57 people per square mile (22/km²).There were 19,499 housing units at an average density of 26 per square mile (10/km²).The racial makeup of the county was 56.41% White, 1.20% Black or African American, 32.42% Native American, 0.27% Asian, 0.04% Pacific Islander, 2.10% from other races, and 7.56% from two or more races.