Gilbert is located in Lexington county South carolina with a geographic area of 2.7 square miles. The total population in Gilbert is 650 with 52.3% male and 47.7% female. Children under age 5 represent 2.8% of the population, under age 18 equal 23.4% of the population and over age 65 is 10.9% of the population. The median household income is $65,313, per capita income is $41,111. There are a total of 265 housing units with 81.9% owner occupied. Education includes 40.0% of residents that are high school graduates and 10.6% with a bachelor's degree or higher. The average temperature in Gilbert in the summer is 77 degrees, and in the winter 43 degrees.