As of the 2010 United States Census, there were 99,958 people, 34,390 households, and 26,165 families living in the county. The population density was . There were 38,342 housing units at an average density of . The racial makeup of the county was 53.8% white, 40.9% black or African American, 0.9% Asian, 0.2% American Indian, 2.1% from other races, and 2.1% from two or more races. Those of Hispanic or Latino origin made up 4.6% of the population. In terms of ancestry, 13.4% were American, 9.2% were Irish, 8.0% were English, and 7.5% were German.