Gaston is located in Lexington county South carolina with a geographic area of 5.3 square miles. The total population in Gaston is 2,074 with 49.2% male and 50.8% female. Children under age 5 represent 8.9% of the population, under age 18 equal 27.7% of the population and over age 65 is 7.8% of the population. The median household income is $42,591, per capita income is $19,795. There are a total of 793 housing units with 64.1% owner occupied. Education includes 31.3% of residents that are high school graduates and 15.9% with a bachelor's degree or higher. The average temperature in Gaston in the summer is 77 degrees, and in the winter 43 degrees.