Hutto is located in Williamson county Texas with a geographic area of 12.3 square miles. The total population in Hutto is 26,778 with 48.2% male and 51.8% female. Children under age 5 represent 6.5% of the population, under age 18 equal 25.7% of the population and over age 65 is 5.3% of the population. The median household income is $87,333, per capita income is $31,930. There are a total of 8,106 housing units with 78.0% owner occupied. Education includes 21.6% of residents that are high school graduates and 37.7% with a bachelor's degree or higher. The average temperature in Hutto in the summer is 83 degrees, and in the winter 49 degrees.