As of the 2010 United States Census, there were 55,342 people, 21,519 households, and 14,941 families residing in the county. The population density was . There were 23,997 housing units at an average density of . The racial makeup of the county was 75.0% white, 20.4% black or African American, 0.6% Asian, 0.4% American Indian, 2.2% from other races, and 1.4% from two or more races. Those of Hispanic or Latino origin made up 3.7% of the population. In terms of ancestry, 14.7% were American, 9.7% were Irish, 6.6% were English, and 6.5% were German.