Oakville is located in St. louis county Missouri with a geographic area of 15.9 square miles. The total population in Oakville is 36,117 with 48.8% male and 51.2% female. Children under age 5 represent 4.0% of the population, under age 18 equal 18.1% of the population and over age 65 is 20.3% of the population. The median household income is $86,505, per capita income is $43,607. There are a total of 14,214 housing units with 87.5% owner occupied. Education includes 22.3% of residents that are high school graduates and 43.5% with a bachelor's degree or higher. The average temperature in Oakville in the summer is 77 degrees, and in the winter 32 degrees.
