Bourbonnais is located in Kankakee county Illinois with a geographic area of 9.3 square miles. The total population in Bourbonnais is 19,639 with 47.1% male and 52.9% female. Children under age 5 represent 4.3% of the population, under age 18 equal 19.0% of the population and over age 65 is 14.4% of the population. The median household income is $76,920, per capita income is $30,972. There are a total of 6,387 housing units with 68.5% owner occupied. Education includes 26.0% of residents that are high school graduates and 38.6% with a bachelor's degree or higher. The average temperature in Bourbonnais in the summer is 74 degrees, and in the winter 27 degrees.