| | Caldwell Parish | LA | 22021 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CaldwellParish+LA |
| | Cameron Parish | LA | 22023 | | Lake Charles, LA 29340 | Lake Charles-DeRidder, LA 324 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=CameronParish+LA |
| | Catahoula Parish | LA | 22025 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=CatahoulaParish+LA |
| | Claiborne Parish | LA | 22027 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=ClaiborneParish+LA |
| | Concordia Parish | LA | 22029 | | Natchez, MS-LA 35020 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=ConcordiaParish+LA |
| | De Soto Parish | LA | 22031 | | Shreveport-Bossier City,
LA 43340 | Shreveport-Bossier
City-Minden, LA 508 | Outlying | metro county (urban) | mining-dependent | https://maps.google.com/?q=DeSotoParish+LA |
| | East Baton Rouge Parish | LA | 22033 | | Baton Rouge, LA 12940 | Baton Rouge-Hammond, LA 132 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=EastBatonRougeParish+LA |
| | East Carroll Parish | LA | 22035 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=EastCarrollParish+LA |
| | East Feliciana Parish | LA | 22037 | | Baton Rouge, LA 12940 | Baton Rouge-Hammond, LA 132 | Outlying | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=EastFelicianaParish+LA |
| | Evangeline Parish | LA | 22039 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=EvangelineParish+LA |