As of the 2010 United States Census, there were 46,682 people and 18,743 households in the county. The population density was 113.6/sqmi (43.9/km2). There were 21,537 housing units at an average density of 52.4/sqmi (20.2/km2). The racial makeup of the county was 97.53% White, 0.64% Black or African American, 0.11% Native American, 0.36% Asian, 0.01% Pacific Islander, 0.31% from other races, and 1.03% from two or more races. 1.14% of the population were Hispanic or Latino of any race. 38.8% were of German, 19.2% American, 8.0% Irish and 7.5% English ancestry. 5.7% report speaking Pennsylvania German, Dutch, or German at home.