As of the 2010 United States Census, there were 88,737 people, 30,873 households, and 23,732 families residing in the county. The population density was . There were 33,780 housing units at an average density of . The racial makeup of the county was 81.4% white, 13.4% black or African American, 1.4% Asian, 0.4% American Indian, 0.7% from other races, and 2.7% from two or more races. Those of Hispanic or Latino origin made up 2.7% of the population. In terms of ancestry, 19.6% were Germans, 17.6% were Irish people, 13.9% were English people, 8.4% were Italians, and 7.4% were Americans.. How many more percent did the largest group in terms of ancestry have compared to the smallest?