2010 census As of the 2010 United States Census, there were 16,719 people, 6,495 households, and 4,611 families living in the county. The population density was . There were 7,099 housing units at an average density of . The racial makeup of the county was 93.4% white, 0.6% American Indian, 0.5% Asian, 0.1% Pacific islander, 0.1% black or African American, 3.1% from other races, and 2.2% from two or more races. Those of Hispanic or Latino origin made up 8.0% of the population. In terms of ancestry, 23.2% were German, 19.2% were English, 15.8% were American, and 12.3% were Irish.
2010 census As of the 2010 United States Census there were 16719 people 6495 households and 4611 families living in the county The population density was  There were 7099 housing units at an average density of  The racial makeup of the county was 934% white 06% American Indian 05% Asian 01% Pacific islander 01% black or African American 31% from other races and 22% from two or more races Those of Hispanic or Latino origin made up 80% of the population In terms of ancestry 232% were German 192% were English 158% were American and 123% were Irish