Sanderson is located in Terrell county Texas with a geographic area of 4.2 square miles. The total population in Sanderson is 769 with 47.3% male and 52.7% female. Children under age 5 represent 1.6% of the population, under age 18 equal 14.0% of the population and over age 65 is 31.5% of the population. The median household income is $43,224, per capita income is $23,976. There are a total of 312 housing units with 96.5% owner occupied. Education includes 29.5% of residents that are high school graduates and 21.8% with a bachelor's degree or higher. The average temperature in Sanderson in the summer is 83 degrees, and in the winter 49 degrees.