sentences:  About 20.4% of families and 23.0% of the population were below the poverty line, including 29.0% of those under age 18 and 19.2% of those age 65 or over.At the 2010 census there were 6,519 people, 2,656 households, and 1,723 families living in the city.The population density was 488 people per square mile (188.4/km²).