Dardenne prairie is located in St. charles county Missouri with a geographic area of 5.3 square miles. The total population in Dardenne prairie is 13,385 with 50.5% male and 49.5% female. Children under age 5 represent 4.0% of the population, under age 18 equal 26.0% of the population and over age 65 is 13.9% of the population. The median household income is $134,267, per capita income is $53,570. There are a total of 4,585 housing units with 96.4% owner occupied. Education includes 14.2% of residents that are high school graduates and 56.5% with a bachelor's degree or higher. The average temperature in Dardenne prairie in the summer is 77 degrees, and in the winter 32 degrees.