Fairfax is located in Osage county Oklahoma with a geographic area of 0.8 square miles. The total population in Fairfax is 1,289 with 49.2% male and 50.8% female. Children under age 5 represent 6.4% of the population, under age 18 equal 24.0% of the population and over age 65 is 21.7% of the population. The median household income is $37,059, per capita income is $24,405. There are a total of 510 housing units with 80.8% owner occupied. Education includes 38.2% of residents that are high school graduates and 14.7% with a bachelor's degree or higher. The average temperature in Fairfax in the summer is 80 degrees, and in the winter 42 degrees.