 About 3.8% of families and 4.3% of the population were below the poverty line, including 6.0% of those under age 18 and 1.7% of those age 65 or over.At the 2010 census there were 4,286 people in 1,747 households, including 1,287 families, in the city.The population density was 351.6 people per square mile (135.6/km²).