- La Nouvelle-Ibérie
- La Nouvelle-Orléans
- Labadieville
- Lacassine
- Lacombe
- Lafayette
- Lafitte
- Lake Arthur
- Lake Charles
- Lake Providence
- Lakeshore
- Lakeview
- Laplace
- Larose
- Lawtell
- Le Pont Breaux
- Lecompte
- Leesville
- Lemannville
- Leonville
- Lillie
- Lisbon
- Livingston
- Livonia
- Lockport
- Lockport Heights
- Logansport
- Longstreet
- Longville
- Loreauville
- Lucky
- Luling
- Lutcher
- Lydia
