| | Jackson Parish | LA | 22049 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=JacksonParish+LA |
| | Jefferson Parish | LA | 22051 | | New Orleans-Metairie, LA 35380 | New
Orleans-Metairie-Slidell,
LA-MS 406 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=JeffersonParish+LA |
| | Jefferson Davis Parish | LA | 22053 | | Lake Charles, LA 29340 | Lake Charles-DeRidder, LA 324 | Outlying | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=JeffersonDavisParish+Louisiana |
| | Lafourche Parish | LA | 22057 | | Houma-Bayou
Cane-Thibodaux, LA 26380 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=LafourcheParish+LA |
| | Livingston Parish | LA | 22063 | | Baton Rouge, LA 12940 | Baton Rouge-Hammond, LA 132 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=LivingstonParish+LA |
| | Madison Parish | LA | 22065 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=MadisonParish+LA |
| | Morehouse Parish | LA | 22067 | | Monroe, LA 33740 | Monroe-Ruston, LA 384 | Outlying | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=MorehouseParish+Louisiana |
| | Ouachita Parish | LA | 22073 | | Monroe, LA 33740 | Monroe-Ruston, LA 384 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=OuachitaParish+LA |
| | Plaquemines Parish | LA | 22075 | | New Orleans-Metairie, LA 35380 | New
Orleans-Metairie-Slidell,
LA-MS 406 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=PlaqueminesParish+LA |
| | Pointe Coupee Parish | LA | 22077 | | Baton Rouge, LA 12940 | Baton Rouge-Hammond, LA 132 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=PointeCoupeeParish+LA |