Kirby is located in Bexar county Texas with a geographic area of 2.0 square miles. The total population in Kirby is 8,709 with 47.6% male and 52.4% female. Children under age 5 represent 9.4% of the population, under age 18 equal 26.5% of the population and over age 65 is 18.4% of the population. The median household income is $43,565, per capita income is $20,772. There are a total of 2,858 housing units with 67.7% owner occupied. Education includes 24.7% of residents that are high school graduates and 8.5% with a bachelor's degree or higher. The average temperature in Kirby in the summer is 83 degrees, and in the winter 49 degrees.
