sentences:  There were 52,357 housing units at an average density of .The racial makeup of the county was 89.1% white, 6.9% black or African American, 1.0% Asian, 0.3% American Indian, 0.1% Pacific islander, 0.6% from other races, and 2.1% from two or more races.Those of Hispanic or Latino origin made up 1.8% of the population.