2000 census As of the 2000 United States Census, there were 15,639 people, 6,129 households, and 4,130 families in the county. The population density was . There were 8,307 housing units at an average density of . The racial makeup of the county was 90.11% White, 0.67% African-American or Black, 1.27% Indigenous American, 0.67% Asian, 0.06% Pacific Islander, 5.17% from other races, and 2.05% from two or more races. 13.83% of the population were Hispanic or Latino of any race. 20.1% were of German, 11.8% English, 10.0% Irish and 8.9% American ancestry.
2000 census as of the 2000 united states census there were 15639 people 6129 households and 4130 families in the county the population density was  there were 8307 housing units at an average density of  the racial makeup of the county was 9011% white 067% african-american or black 127% indigenous american 067% asian 006% pacific islander 517% from other races and 205% from two or more races 1383% of the population were hispanic or latino of any race 201% were of german 118% english 100% irish and 89% american ancestry