Seguin is located in Guadalupe county Texas with a geographic area of 38.3 square miles. The total population in Seguin is 29,458 with 46.9% male and 53.1% female. Children under age 5 represent 5.4% of the population, under age 18 equal 23.3% of the population and over age 65 is 16.6% of the population. The median household income is $49,976, per capita income is $23,632. There are a total of 10,252 housing units with 63.3% owner occupied. Education includes 35.7% of residents that are high school graduates and 18.7% with a bachelor's degree or higher. The average temperature in Seguin in the summer is 82 degrees, and in the winter 49 degrees.