As of the census of 2010, there were 280,895 people, 111,162 households, and 62,674 families residing in the county. The population density was 502.3 people per square mile (193.9/km2). There were 121,281 housing units at an average density of 216.8 per square mile (83.7/km2). The racial makeup of the county was 76.2% White, 11.8% Black or African American, 0.6% Native American, 5.2% Asian, 0.04% Pacific Islander, 2.3% from other races, and 4.0% from two or more races. 7.83% of the population were Hispanic or Latino of any race.