At the 2000 census, there were 39,326 people, 12,961 households and 10,096 families residing in the county. The population density was 46 per square mile (18/km2). There were 14,819 housing units at an average density of 17 per square mile (7/km2). The racial makeup of the county was 77.90% White, 0.60% Black or African American, 0.62% Native American, 0.43% Asian, 0.09% Pacific Islander, 17.93% from other races, and 2.43% from two or more races. 75.71% of the population were Hispanic or Latino of any race.