Mount zion is located in Macon county Illinois with a geographic area of 4.2 square miles. The total population in Mount zion is 5,707 with 48.6% male and 51.4% female. Children under age 5 represent 3.1% of the population, under age 18 equal 28.7% of the population and over age 65 is 18.2% of the population. The median household income is $79,154, per capita income is $38,717. There are a total of 2,103 housing units with 76.7% owner occupied. Education includes 21.7% of residents that are high school graduates and 33.5% with a bachelor's degree or higher. The average temperature in Mount zion in the summer is 74 degrees, and in the winter 27 degrees.