De kalb is located in Bowie county Texas with a geographic area of 1.4 square miles. The total population in De kalb is 1,616 with 49.5% male and 50.5% female. Children under age 5 represent 3.1% of the population, under age 18 equal 27.4% of the population and over age 65 is 20.0% of the population. The median household income is $34,178, per capita income is $23,947. There are a total of 631 housing units with 47.7% owner occupied. Education includes 33.1% of residents that are high school graduates and 12.7% with a bachelor's degree or higher. The average temperature in De kalb in the summer is 81 degrees, and in the winter 49 degrees.