Kilbourne is located in Mason county Illinois with a geographic area of 0.9 square miles. The total population in Kilbourne is 350 with 46.3% male and 53.7% female. Children under age 5 represent 0.9% of the population, under age 18 equal 28.6% of the population and over age 65 is 14.0% of the population. The median household income is $33,750, per capita income is $17,228. There are a total of 156 housing units with 69.2% owner occupied. Education includes 50.0% of residents that are high school graduates and 5.1% with a bachelor's degree or higher. The average temperature in Kilbourne in the summer is 74 degrees, and in the winter 27 degrees.
