As of the 2010 United States Census, there were 47,051 people, 17,406 households, and 12,516 families in the county. The population density was . There were 19,845 housing units at an average density of . The racial makeup of the county was 93.5% white, 0.5% black or African American, 0.5% Asian, 0.2% American Indian, 3.8% from other races, and 1.5% from two or more races. Those of Hispanic or Latino origin made up 8.4% of the population. In terms of ancestry, 35.4% were German, 11.2% were Irish, 9.4% were American, and 8.5% were English.