| Localité | Code postal |
|---|---|
| Moore Town, Portland | JMBPD13 |
| Mount Pleasant, Portland | JM00000 |
| Nonsuch, Portland | JM00000 |
| Norwich, Portland | JM00000 |
| Orange Bay, Portland | JMBPD14 |
| Port Antonio, Portland | JMBPD15 |
| Priestman's River, Portland | JMBPD16 |
| Prior Park, Portland | JMBPD17 |
| Prospect, Portland | JM00000 |
| Rock Hall, Portland | JM00000 |
| Saint Margaret's Bay, Portland | JMBPD18 |
| Sherwood Forest, Portland | JM00000 |
| Shirley Castle, Portland | JM00000 |
| Skibo, Portland | JMBPD19 |
| Snow Hill, Portland | JM00000 |
| Spring Hill, Portland | JMBPD20 |
| St. Margaret's Bay, Portland | JM00000 |
| Swift River, Portland | JMBPD21 |
| Tranquility, Portland | JM00000 |
| Windsor, Portland | JM00000 |
| Windsor Castle, Portland | JMBPD22 |
| Windsor Forest, Portland | JM00000 |