Trenton is located in Gibson county Tennessee with a geographic area of 8.0 square miles. The total population in Trenton is 4,197 with 53.1% male and 46.9% female. Children under age 5 represent 6.4% of the population, under age 18 equal 18.0% of the population and over age 65 is 18.6% of the population. The median household income is $29,517, per capita income is $18,063. There are a total of 1,723 housing units with 32.0% owner occupied. Education includes 27.7% of residents that are high school graduates and 17.0% with a bachelor's degree or higher. The average temperature in Trenton in the summer is 76 degrees, and in the winter 38 degrees.