Farmington is located in Marion county West virginia with a geographic area of 0.4 square miles. The total population in Farmington is 460 with 41.1% male and 58.9% female. Children under age 5 represent 10.9% of the population, under age 18 equal 27.8% of the population and over age 65 is 13.5% of the population. The median household income is $66,000, per capita income is $23,868. There are a total of 156 housing units with 85.3% owner occupied. Education includes 53.2% of residents that are high school graduates and 10.9% with a bachelor's degree or higher. The average temperature in Farmington in the summer is 69 degrees, and in the winter 32 degrees.