Grayson is located in Gwinnett county Georgia with a geographic area of 2.5 square miles. The total population in Grayson is 4,303 with 42.9% male and 57.1% female. Children under age 5 represent 18.3% of the population, under age 18 equal 35.9% of the population and over age 65 is 10.5% of the population. The median household income is $107,685, per capita income is $29,531. There are a total of 1,075 housing units with 95.8% owner occupied. Education includes 11.1% of residents that are high school graduates and 68.5% with a bachelor's degree or higher. The average temperature in Grayson in the summer is 76 degrees, and in the winter 42 degrees.