Jennings is located in St. louis county Missouri with a geographic area of 3.7 square miles. The total population in Jennings is 14,672 with 43.1% male and 56.9% female. Children under age 5 represent 5.8% of the population, under age 18 equal 22.6% of the population and over age 65 is 15.5% of the population. The median household income is $31,952, per capita income is $17,815. There are a total of 6,484 housing units with 45.1% owner occupied. Education includes 40.4% of residents that are high school graduates and 6.7% with a bachelor's degree or higher. The average temperature in Jennings in the summer is 77 degrees, and in the winter 32 degrees.
