Marion is located in Guadalupe county Texas with a geographic area of 0.8 square miles. The total population in Marion is 886 with 47.7% male and 52.3% female. Children under age 5 represent 4.5% of the population, under age 18 equal 16.5% of the population and over age 65 is 30.1% of the population. The median household income is $52,250, per capita income is $21,806. There are a total of 386 housing units with 72.0% owner occupied. Education includes 33.4% of residents that are high school graduates and 6.0% with a bachelor's degree or higher. The average temperature in Marion in the summer is 82 degrees, and in the winter 49 degrees.