 The per capita income for the county was $21,743.About 8.30% of families and 11.30% of the population were below the poverty line, including 15.60% of those under age 18 and 8.20% of those age 65 or over.As of the 2010 Census, there were 535,153 people, 223,943 households, and 138,060 families living in the county.