Jennings Map
Jennings is a city in St. Louis County, Missouri, United States. The population was 14,712 at the 2010 census.
Jennings is located at 38°43?16?N 90°15?41?W / 38.72111°N 90.26139°W / 38.72111; -90.26139 (38.721100, -90.261428).
According to the United States Census Bureau, the city has a total area of 3.7 square miles (9.6 km²), all of it land.
Nearby cities include Pontoon Beach, Frontenac, Webster Groves, Maryland Heights, Sauget.