De soto is located in Jackson county Illinois with a geographic area of 0.9 square miles. The total population in De soto is 1,652 with 52.1% male and 47.9% female. Children under age 5 represent 5.3% of the population, under age 18 equal 24.0% of the population and over age 65 is 13.9% of the population. The median household income is $44,744, per capita income is $23,418. There are a total of 645 housing units with 47.0% owner occupied. Education includes 28.1% of residents that are high school graduates and 27.9% with a bachelor's degree or higher. The average temperature in De soto in the summer is 74 degrees, and in the winter 27 degrees.