Avon is located in Hartford county Connecticut with a geographic area of square miles. The total population in Avon is 18,302 with 49.2% male and 50.8% female. Children under age 5 represent 4.6% of the population, under age 18 equal 24.1% of the population and over age 65 is 21.3% of the population. The median household income is $123,077, per capita income is $74,617. There are a total of 7,180 housing units with 83.7% owner occupied. Education includes 6.9% of residents that are high school graduates and 67.5% with a bachelor's degree or higher. The average temperature in Avon in the summer is 68 degrees, and in the winter 27 degrees.