 There were 4,112 housing units at an average density of 3 per square mile (1/km²).The racial makeup of the county was 76.95% White, 0.88% Black or African American, 0.70% Native American, 0.66% Asian, 0.07% Pacific Islander, 18.23% from other races, and 2.51% from two or more races.84.97% of the population were Hispanic or Latino of any race.