| | St. Martin Parish | LA | 22099 | | Lafayette, LA 29180 | Lafayette-New
Iberia-Opelousas, LA 318 | Outlying | metro county (urban) | recreation | https://maps.google.com/?q=St.MartinParish+LA |
| | Union Parish | LA | 22111 | | Monroe, LA 33740 | Monroe-Ruston, LA 384 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=UnionParish+LA |
| | Vermilion Parish | LA | 22113 | | Lafayette, LA 29180 | Lafayette-New
Iberia-Opelousas, LA 318 | Outlying | metro county (urban) | mining-dependent | https://maps.google.com/?q=VermilionParish+LA |
| | West Feliciana Parish | LA | 22125 | | Baton Rouge, LA 12940 | Baton Rouge-Hammond, LA 132 | Outlying | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=WestFelicianaParish+LA |