Marion is located in Flathead county Montana with a geographic area of 16.9 square miles. The total population in Marion is 1,041 with 54.2% male and 45.8% female. Children under age 5 represent 7.4% of the population, under age 18 equal 24.7% of the population and over age 65 is 14.0% of the population. The median household income is $54,138, per capita income is $26,555. There are a total of 390 housing units with 89.5% owner occupied. Education includes 37.4% of residents that are high school graduates and 20.0% with a bachelor's degree or higher. The average temperature in Marion in the summer is 69 degrees, and in the winter 27 degrees.