| | Franklin Parish | LA | 22041 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=FranklinParish+LA |
| | Grant Parish | LA | 22043 | | Alexandria, LA 10780 | | Outlying | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=GrantParish+LA |
| | Iberia Parish | LA | 22045 | | New Iberia, LA 35340 | Lafayette-New
Iberia-Opelousas, LA 318 | Central | metro county (urban) | mining-dependent | https://maps.google.com/?q=IberiaParish+LA |
| | Iberville Parish | LA | 22047 | | Baton Rouge, LA 12940 | Baton Rouge-Hammond, LA 132 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=IbervilleParish+LA |
| | 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 |
| | Lafayette Parish | LA | 22055 | | Lafayette, LA 29180 | Lafayette-New
Iberia-Opelousas, LA 318 | Central | metro county (urban) | mining-dependent | https://maps.google.com/?q=LafayetteParish+LA |
| | Lafourche Parish | LA | 22057 | | Houma-Bayou
Cane-Thibodaux, LA 26380 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=LafourcheParish+LA |
| | LaSalle Parish | LA | 22059 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=LaSalleParish+LA |