Jennings is a small city in and the parish seat of Jefferson Davis Parish, Louisiana, United States, near Lake Charles. The population was 10,383 at the 2010 census, a small decline from the 2000 tabulation. The city is 68 percent white.
Jennings is the principal city of the Jennings Micropolitan Statistical Area, which includes all of Jefferson Davis Parish. It is also part of the larger Lake Charles-Jennings Combined Statistical Area.