Fairfax is located in Chittenden county Vermont with a geographic area of 1.9 square miles. The total population in Fairfax is 1,145 with 53.5% male and 46.5% female. Children under age 5 represent 5.5% of the population, under age 18 equal 18.4% of the population and over age 65 is 13.4% of the population. The median household income is $53,605, per capita income is $35,636. There are a total of 548 housing units with 43.1% owner occupied. Education includes 23.7% of residents that are high school graduates and 52.9% with a bachelor's degree or higher. The average temperature in Fairfax in the summer is 65 degrees, and in the winter 19 degrees.