Rowlett is located in Dallas county Texas with a geographic area of 20.7 square miles. The total population in Rowlett is 65,426 with 49.5% male and 50.5% female. Children under age 5 represent 5.6% of the population, under age 18 equal 24.4% of the population and over age 65 is 10.7% of the population. The median household income is $103,627, per capita income is $39,153. There are a total of 21,628 housing units with 83.4% owner occupied. Education includes 16.4% of residents that are high school graduates and 40.8% with a bachelor's degree or higher. The average temperature in Rowlett in the summer is 83 degrees, and in the winter 49 degrees.