Lavon is located in Collin county Texas with a geographic area of 3.0 square miles. The total population in Lavon is 3,504 with 50.9% male and 49.1% female. Children under age 5 represent 8.0% of the population, under age 18 equal 32.5% of the population and over age 65 is 5.9% of the population. The median household income is $95,286, per capita income is $35,954. There are a total of 1,144 housing units with 86.5% owner occupied. Education includes 19.8% of residents that are high school graduates and 38.5% with a bachelor's degree or higher. The average temperature in Lavon in the summer is 81 degrees, and in the winter 49 degrees.