St. george is located in Knox county Maine with a geographic area of square miles. The total population in St. george is 2,580 with 49.5% male and 50.5% female. Children under age 5 represent 0.6% of the population, under age 18 equal 13.4% of the population and over age 65 is 41.8% of the population. The median household income is $53,098, per capita income is $39,394. There are a total of 1,299 housing units with 89.6% owner occupied. Education includes 21.6% of residents that are high school graduates and 37.6% with a bachelor's degree or higher. The average temperature in St. george in the summer is 68 degrees, and in the winter 25 degrees.