Destrehan is located in St. charles county Louisiana with a geographic area of 6.0 square miles. The total population in Destrehan is 11,658 with 50.4% male and 49.6% female. Children under age 5 represent 5.3% of the population, under age 18 equal 22.0% of the population and over age 65 is 13.7% of the population. The median household income is $108,640, per capita income is $42,784. There are a total of 4,381 housing units with 81.2% owner occupied. Education includes 20.0% of residents that are high school graduates and 48.7% with a bachelor's degree or higher. The average temperature in Destrehan in the summer is 81 degrees, and in the winter 51 degrees.
