Swansea is located in Bristol county Massachusetts with a geographic area of square miles. The total population in Swansea is 16,692 with 49.4% male and 50.6% female. Children under age 5 represent 3.5% of the population, under age 18 equal 18.3% of the population and over age 65 is 20.0% of the population. The median household income is $95,945, per capita income is $41,198. There are a total of 6,580 housing units with 86.8% owner occupied. Education includes 29.4% of residents that are high school graduates and 33.5% with a bachelor's degree or higher. The average temperature in Swansea in the summer is 70 degrees, and in the winter 30 degrees.
