Cornwall is located in Addison county Vermont with a geographic area of square miles. The total population in Cornwall is 1,039 with 53.0% male and 47.0% female. Children under age 5 represent 3.7% of the population, under age 18 equal 17.2% of the population and over age 65 is 27.8% of the population. The median household income is $90,750, per capita income is $50,880. There are a total of 442 housing units with 82.6% owner occupied. Education includes 23.3% of residents that are high school graduates and 57.9% with a bachelor's degree or higher. The average temperature in Cornwall in the summer is 65 degrees, and in the winter 19 degrees.