St. marys is located in Camden county Georgia with a geographic area of 22.8 square miles. The total population in St. marys is 18,321 with 50.0% male and 50.0% female. Children under age 5 represent 8.0% of the population, under age 18 equal 24.5% of the population and over age 65 is 14.3% of the population. The median household income is $66,033, per capita income is $30,818. There are a total of 7,172 housing units with 54.2% owner occupied. Education includes 22.9% of residents that are high school graduates and 26.2% with a bachelor's degree or higher. The average temperature in St. marys in the summer is 76 degrees, and in the winter 42 degrees.
