Marion is located in Union county Louisiana with a geographic area of 3.2 square miles. The total population in Marion is 675 with 40.7% male and 59.3% female. Children under age 5 represent 4.7% of the population, under age 18 equal 13.9% of the population and over age 65 is 22.7% of the population. The median household income is $39,327, per capita income is $27,530. There are a total of 267 housing units with 68.2% owner occupied. Education includes 41.2% of residents that are high school graduates and 16.5% with a bachelor's degree or higher. The average temperature in Marion in the summer is 81 degrees, and in the winter 51 degrees.