| Locality | Post Code |
|---|---|
| 12th Street, Westmoreland | JM00000 |
| Amity, Westmoreland | JM00000 |
| Barneyside, Westmoreland | JM00000 |
| Bath, Westmoreland | JM00000 |
| Bath Mountain, Westmoreland | JM00000 |
| Beeston Spring, Westmoreland | JMDWD01 |
| Belvedere, Westmoreland | JM00000 |
| Bethel Town, Westmoreland | JMDWD02 |
| Big Bridge, Westmoreland | JM00000 |
| Bluefields, Westmoreland | JMDWD03 |
| Bog, Westmoreland | JM00000 |
| Broughton, Westmoreland | JM00000 |
| Burnt Savannah, Westmoreland | JM00000 |
| Caledonia, Westmoreland | JM00000 |
| Carmel, Westmoreland | JMDWD04 |
| Cave, Westmoreland | JMDWD05 |
| Chantilly, Westmoreland | JM00000 |
| Content, Westmoreland | JM00000 |
| Cornwall Mountain, Westmoreland | JMDWD06 |
| Cornwall Mountian, Westmoreland | JM00000 |
| Darliston, Westmoreland | JMDWD07 |
| Delveland, Westmoreland | JM00000 |
| Dillion Bigwoods, Westmoreland | JM00000 |
| Enfield, Westmoreland | JM00000 |
| Ferris, Westmoreland | JM00000 |
| Fort Williams, Westmoreland | JM00000 |