Farmington is located in Fulton county Illinois with a geographic area of 1.5 square miles. The total population in Farmington is 1,939 with 51.5% male and 48.5% female. Children under age 5 represent 4.2% of the population, under age 18 equal 25.8% of the population and over age 65 is 16.8% of the population. The median household income is $51,335, per capita income is $26,332. There are a total of 827 housing units with 75.1% owner occupied. Education includes 36.6% of residents that are high school graduates and 22.7% with a bachelor's degree or higher. The average temperature in Farmington in the summer is 74 degrees, and in the winter 27 degrees.