 About 5.80% of families and 7.10% of the population were below the poverty line, including 8.30% of those under age 18 and 5.30% of those age 65 or over.As of the 2010 census, there were 49,975 people, 16,058 households, and 12,891 families in the county.The population density was 8.70/sqmi (3.36/km²).