Creve coeur is located in St. louis county Missouri with a geographic area of 10.3 square miles. The total population in Creve coeur is 18,627 with 47.2% male and 52.8% female. Children under age 5 represent 4.4% of the population, under age 18 equal 17.2% of the population and over age 65 is 26.5% of the population. The median household income is $95,699, per capita income is $73,714. There are a total of 8,230 housing units with 65.7% owner occupied. Education includes 6.8% of residents that are high school graduates and 70.1% with a bachelor's degree or higher. The average temperature in Creve coeur in the summer is 77 degrees, and in the winter 32 degrees.