sentences:  About 7.4% of families and 9.0% of the population were below the poverty line, including 12.2% of those under age 18 and 8.9% of those age 65 or over.At the 2010 census there were 13,405 people in 5,208 households, including 3,757 families, in the city.The population density was 558.5 people per square mile (215.6/km²).