Farmington is located in Franklin county Maine with a geographic area of 4.0 square miles. The total population in Farmington is 4,785 with 42.4% male and 57.6% female. Children under age 5 represent 3.4% of the population, under age 18 equal 9.2% of the population and over age 65 is 25.3% of the population. The median household income is $39,318, per capita income is $22,755. There are a total of 1,842 housing units with 40.8% owner occupied. Education includes 30.8% of residents that are high school graduates and 37.8% with a bachelor's degree or higher. The average temperature in Farmington in the summer is 68 degrees, and in the winter 25 degrees.