Marion is located in Grant county Indiana with a geographic area of 15.7 square miles. The total population in Marion is 27,730 with 45.8% male and 54.2% female. Children under age 5 represent 5.0% of the population, under age 18 equal 19.0% of the population and over age 65 is 18.4% of the population. The median household income is $35,252, per capita income is $20,321. There are a total of 11,251 housing units with 55.8% owner occupied. Education includes 38.8% of residents that are high school graduates and 14.8% with a bachelor's degree or higher. The average temperature in Marion in the summer is 72 degrees, and in the winter 29 degrees.
