2010 census At the 2000 census, 451,225 people, 176,531 households, and 119,362 families were residing in the county. The population density was . The 195,462 housing units had an average density of . The racial makeup of the county was 73.8% White, 18.1% African American, 2.0% Asian, 0.3% American Indian, 0.1% Pacific Islander, 3.9% from other races, and 1.9% from two or more races. Those of Hispanic or Latino origin made up 8.1% of the population. In terms of ancestry, 13.0% were American, 11.6% were German, 10.9% were English, and 10.7% were Irish.
2010 census At the 2000 census, 451,225 people, 176,531 households, and 119,362 families were residing in the county. The population densi.ty was . The 195,462 housing units had an average density of . The racial makeup of the county was 738% White, 18.1% African American, 2.0% Asian, 0.3% American Indian, 0.1% Pacific Islander, 3.9% from other races, and 1.9% from two or more races. Those of Hispanic or Latino origin made up 8.1% of the population. In terms of ancestry, 13.0% were American, 11.6% were German, 10.9% were English, and 10.7% were Irish.