Jonestown is located in Travis county Texas with a geographic area of 6.4 square miles. The total population in Jonestown is 2,015 with 53.6% male and 46.4% female. Children under age 5 represent 2.2% of the population, under age 18 equal 19.7% of the population and over age 65 is 23.1% of the population. The median household income is $95,809, per capita income is $61,844. There are a total of 849 housing units with 88.8% owner occupied. Education includes 14.6% of residents that are high school graduates and 45.7% with a bachelor's degree or higher. The average temperature in Jonestown in the summer is 83 degrees, and in the winter 49 degrees.