Brewster is located in Barnstable county Massachusetts with a geographic area of 3.9 square miles. The total population in Brewster is 1,347 with 49.4% male and 50.6% female. Children under age 5 represent 0.0% of the population, under age 18 equal 8.6% of the population and over age 65 is 46.1% of the population. The median household income is $52,167, per capita income is $52,627. There are a total of 700 housing units with 90.1% owner occupied. Education includes 28.4% of residents that are high school graduates and 51.0% with a bachelor's degree or higher. The average temperature in Brewster in the summer is 70 degrees, and in the winter 30 degrees.