Big sandy is located in Benton county Tennessee with a geographic area of 0.6 square miles. The total population in Big sandy is 628 with 55.6% male and 44.4% female. Children under age 5 represent 13.7% of the population, under age 18 equal 30.4% of the population and over age 65 is 15.9% of the population. The median household income is $33,958, per capita income is $16,262. There are a total of 249 housing units with 51.0% owner occupied. Education includes 51.4% of residents that are high school graduates and 8.8% with a bachelor's degree or higher. The average temperature in Big sandy in the summer is 77 degrees, and in the winter 38 degrees.