De kalb is located in Kemper county Mississippi with a geographic area of 3.3 square miles. The total population in De kalb is 945 with 48.9% male and 51.1% female. Children under age 5 represent 5.1% of the population, under age 18 equal 24.6% of the population and over age 65 is 26.9% of the population. The median household income is $29,950, per capita income is $18,173. There are a total of 365 housing units with 72.1% owner occupied. Education includes 21.6% of residents that are high school graduates and 24.9% with a bachelor's degree or higher. The average temperature in De kalb in the summer is 79 degrees, and in the winter 44 degrees.