 There were 73,208 housing units at an average density of 89 per square mile (35/km²).The racial makeup of the county was 81.8% White, 9.9% Black or African American, 0.5% Native American, 2.9% Asian, 0.1% Pacific Islander, 1.1% from other races, and 2.9% from two or more races.7.7% of the population were Hispanic or Latino, with Puerto Ricans being the majority of the Hispanic population.