| | Tensas Parish | LA | 22107 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=TensasParish+LA |
| | Tangipahoa Parish | LA | 22105 | | Hammond, LA 25220 | Baton Rouge-Hammond, LA 132 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=TangipahoaParish+LA |
| | St. Tammany Parish | LA | 22103 | | Slidell-Mandeville-Covington,
LA 43640 | New
Orleans-Metairie-Slidell,
LA-MS 406 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=St.TammanyParish+LA |
| | St. Mary Parish | LA | 22101 | | Morgan City, LA 34020 | | Central | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=St.MaryParish+LA |
| | 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 |
| | St. Landry Parish | LA | 22097 | | Opelousas, LA 36660 | Lafayette-New
Iberia-Opelousas, LA 318 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=St.LandryParish+LA |
| | St. John the Baptist
Parish | LA | 22095 | | New Orleans-Metairie, LA 35380 | New
Orleans-Metairie-Slidell,
LA-MS 406 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=St.JohntheBaptistParish+LA |
| | St. James Parish | LA | 22093 | | New Orleans-Metairie, LA 35380 | New
Orleans-Metairie-Slidell,
LA-MS 406 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=St.JamesParish+LA |
| | St. Helena Parish | LA | 22091 | | Baton Rouge, LA 12940 | Baton Rouge-Hammond, LA 132 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=St.HelenaParish+LA |
| | St. Charles Parish | LA | 22089 | | New Orleans-Metairie, LA 35380 | New
Orleans-Metairie-Slidell,
LA-MS 406 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=St.CharlesParish+LA |