Schertz is located in Guadalupe county Texas with a geographic area of 32.1 square miles. The total population in Schertz is 42,433 with 48.8% male and 51.2% female. Children under age 5 represent 5.3% of the population, under age 18 equal 23.8% of the population and over age 65 is 13.4% of the population. The median household income is $84,527, per capita income is $36,786. There are a total of 14,853 housing units with 77.2% owner occupied. Education includes 21.1% of residents that are high school graduates and 40.9% with a bachelor's degree or higher. The average temperature in Schertz in the summer is 83 degrees, and in the winter 49 degrees.