Mercer is located in Madison county Tennessee with a geographic area of 1.7 square miles. The total population in Mercer is 80 with 67.5% male and 32.5% female. Children under age 5 represent 7.5% of the population, under age 18 equal 7.5% of the population and over age 65 is 26.3% of the population. The median household income is $32,841, per capita income is $22,016. There are a total of 49 housing units with 100.0% owner occupied. Education includes 0.0% of residents that are high school graduates and 0.0% with a bachelor's degree or higher. The average temperature in Mercer in the summer is 77 degrees, and in the winter 38 degrees.
