sentences:  About 11.9% of families and 13.2% of the population were below the poverty line, including 18.5% of those under age 18 and 7.1% of those age 65 or over.At the 2010 census there were 17,398 people, 6,604 households, and 4,690 families residing in the community.The population density was 1,300 people per square mile (520/km²).