Rienzi is located in Alcorn county Mississippi with a geographic area of 1.0 square miles. The total population in Rienzi is 277 with 54.9% male and 45.1% female. Children under age 5 represent 11.9% of the population, under age 18 equal 22.7% of the population and over age 65 is 35.0% of the population. The median household income is $33,750, per capita income is $18,952. There are a total of 119 housing units with 70.6% owner occupied. Education includes 23.5% of residents that are high school graduates and 5.0% with a bachelor's degree or higher. The average temperature in Rienzi in the summer is 79 degrees, and in the winter 44 degrees.