Potomac is located in Missoula county Montana with a geographic area of 0.3 square miles. The total population in Potomac is 37 with 51.4% male and 48.6% female. Children under age 5 represent 13.5% of the population, under age 18 equal 27.0% of the population and over age 65 is 0.0% of the population. The median household income is $46,458, per capita income is $25,943. There are a total of 15 housing units with 86.7% owner occupied. Education includes 0.0% of residents that are high school graduates and 46.7% with a bachelor's degree or higher. The average temperature in Potomac in the summer is 69 degrees, and in the winter 27 degrees.