sentences:  There were 15,595 housing units at an average density of .The racial makeup of the county was 66.6% white, 1.7% American Indian, 1.4% black or African American, 0.8% Asian, 0.1% Pacific islander, 25.4% from other races, and 3.9% from two or more races.Those of Hispanic or Latino origin made up 76.8% of the population.