 About 3.8% of families and 8.1% of the population were below the poverty line, including 3.8% of those under age 18 and 11.7% of those age 65 or over.As of the 2000 United States Census, there were 3,872 people, 1,509 households, and 1,050 families residing in the city.The population density was 978.8 people per square mile (377.5/km2).