Glenn heights is located in Ellis county Texas with a geographic area of 7.2 square miles. The total population in Glenn heights is 13,228 with 49.1% male and 50.9% female. Children under age 5 represent 6.0% of the population, under age 18 equal 30.0% of the population and over age 65 is 5.7% of the population. The median household income is $72,695, per capita income is $26,543. There are a total of 4,019 housing units with 79.9% owner occupied. Education includes 25.1% of residents that are high school graduates and 30.2% with a bachelor's degree or higher. The average temperature in Glenn heights in the summer is 83 degrees, and in the winter 49 degrees.