South berwick is located in York county Maine with a geographic area of 2.7 square miles. The total population in South berwick is 3,264 with 51.3% male and 48.7% female. Children under age 5 represent 6.9% of the population, under age 18 equal 20.6% of the population and over age 65 is 14.3% of the population. The median household income is $70,777, per capita income is $36,991. There are a total of 1,405 housing units with 73.5% owner occupied. Education includes 15.4% of residents that are high school graduates and 48.1% with a bachelor's degree or higher. The average temperature in South berwick in the summer is 68 degrees, and in the winter 25 degrees.
