Benton is located in Marshall county Kentucky with a geographic area of 5.0 square miles. The total population in Benton is 4,498 with 46.2% male and 53.8% female. Children under age 5 represent 6.9% of the population, under age 18 equal 16.7% of the population and over age 65 is 26.3% of the population. The median household income is $53,185, per capita income is $28,866. There are a total of 2,065 housing units with 76.6% owner occupied. Education includes 41.6% of residents that are high school graduates and 25.4% with a bachelor's degree or higher. The average temperature in Benton in the summer is 80 degrees, and in the winter 36 degrees.