Garden prairie is located in Boone county Illinois with a geographic area of 0.6 square miles. The total population in Garden prairie is 265 with 57.7% male and 42.3% female. Children under age 5 represent 0.0% of the population, under age 18 equal 13.6% of the population and over age 65 is 29.4% of the population. The median household income is $32,039, per capita income is $16,306. There are a total of 118 housing units with 89.8% owner occupied. Education includes 25.4% of residents that are high school graduates and 0.0% with a bachelor's degree or higher. The average temperature in Garden prairie in the summer is 74 degrees, and in the winter 27 degrees.