Stow is located in Middlesex county Massachusetts with a geographic area of square miles. The total population in Stow is 7,159 with 50.3% male and 49.7% female. Children under age 5 represent 6.4% of the population, under age 18 equal 28.4% of the population and over age 65 is 17.2% of the population. The median household income is $143,711, per capita income is $59,831. There are a total of 2,569 housing units with 86.0% owner occupied. Education includes 7.6% of residents that are high school graduates and 77.6% with a bachelor's degree or higher. The average temperature in Stow in the summer is 70 degrees, and in the winter 30 degrees.