Avon is located in Bon homme county South dakota with a geographic area of 0.6 square miles. The total population in Avon is 795 with 51.6% male and 48.4% female. Children under age 5 represent 6.3% of the population, under age 18 equal 35.5% of the population and over age 65 is 17.1% of the population. The median household income is $42,446, per capita income is $21,931. There are a total of 301 housing units with 83.7% owner occupied. Education includes 24.9% of residents that are high school graduates and 30.2% with a bachelor's degree or higher. The average temperature in Avon in the summer is 73 degrees, and in the winter 15 degrees.