Fairfax is located in Renville county Minnesota with a geographic area of 1.3 square miles. The total population in Fairfax is 1,135 with 48.4% male and 51.6% female. Children under age 5 represent 6.7% of the population, under age 18 equal 25.8% of the population and over age 65 is 22.6% of the population. The median household income is $57,750, per capita income is $25,341. There are a total of 441 housing units with 81.6% owner occupied. Education includes 35.8% of residents that are high school graduates and 12.0% with a bachelor's degree or higher. The average temperature in Fairfax in the summer is 69 degrees, and in the winter 9 degrees.