As of the 2010 United States Census, 214,346 people, 75,936 households, and 57,876 families were living in the county. The population density was . The 82,360 housing units averaged . The racial makeup of the county was 86.6% White, 5.65% Black or African American, 1.65% Asian, 0.4% American Indian, 0.1% Pacific Islander, 3.6% from other races, and 2.1% from two or more races. Those of Hispanic or Latino origin of any race made up 9.6% of the population. In terms of ancestry, 16.2% were Irish, 16.1% were German, 14.1% were English, 10.7% were American, and 5.7% were Italian.