Rockwall is located in Rockwall county Texas with a geographic area of 29.5 square miles. The total population in Rockwall is 45,168 with 48.7% male and 51.3% female. Children under age 5 represent 6.6% of the population, under age 18 equal 24.7% of the population and over age 65 is 13.8% of the population. The median household income is $100,894, per capita income is $44,474. There are a total of 16,151 housing units with 77.4% owner occupied. Education includes 12.2% of residents that are high school graduates and 50.6% with a bachelor's degree or higher. The average temperature in Rockwall in the summer is 83 degrees, and in the winter 49 degrees.