As of the 2010 census, there were 455,746 people, 162,530 households, and 121,472 families residing in the county. The population density was 423 people per square mile (163/km2). There were 177,647 housing units at an average density of 165 per square mile (64/km2). The racial makeup of the county was 83.5% White, 4.3% Black or African American, 0.7% Native American, 2.1% Asian, 0.1% Pacific Islander, 7.0% from other races, and 2.3% from two or more races. 20.8% of the population were Hispanic or Latino of any race.