Cotulla is located in La salle county Texas with a geographic area of 2.0 square miles. The total population in Cotulla is 4,160 with 55.3% male and 44.7% female. Children under age 5 represent 4.4% of the population, under age 18 equal 24.3% of the population and over age 65 is 16.6% of the population. The median household income is $46,767, per capita income is $19,644. There are a total of 1,485 housing units with 70.8% owner occupied. Education includes 44.1% of residents that are high school graduates and 14.6% with a bachelor's degree or higher. The average temperature in Cotulla in the summer is 83 degrees, and in the winter 49 degrees.