St. george island is located in Franklin county Florida with a geographic area of 4.8 square miles. The total population in St. george island is 1,006 with 48.4% male and 51.6% female. Children under age 5 represent 0.9% of the population, under age 18 equal 8.1% of the population and over age 65 is 45.8% of the population. The median household income is $78,667, per capita income is $56,627. There are a total of 508 housing units with 92.5% owner occupied. Education includes 6.7% of residents that are high school graduates and 67.1% with a bachelor's degree or higher. The average temperature in St. george island in the summer is 80 degrees, and in the winter 56 degrees.