Weston is located in Middlesex county Massachusetts with a geographic area of square miles. The total population in Weston is 12,103 with 48.9% male and 51.1% female. Children under age 5 represent 5.4% of the population, under age 18 equal 25.9% of the population and over age 65 is 20.8% of the population. The median household income is $206,250, per capita income is $97,126. There are a total of 3,730 housing units with 85.9% owner occupied. Education includes 7.8% of residents that are high school graduates and 86.7% with a bachelor's degree or higher. The average temperature in Weston in the summer is 70 degrees, and in the winter 30 degrees.