| Locality | Postal Code |
|---|---|
| Bryher | TR23 0PR |
| Garrison | TR21 0LS |
| Higher Town | TR25 0QL |
| Holy Vale | TR21 0NT |
| Little Porth | TR21 0JG |
| Lower Town | TR25 0QW |
| Maypole | TR21 0NU |
| Middle Town | TR25 0QN |
| Old Town | TR21 |
| Pelistry | TR21 0NX |
| Porth Mellon | TR21 0JY |
| Porthcressa | TR21 0JQ |
| Rams Valley | TR21 0JX |
| Saint Agnes | TR22 0PL |
| Saint Mary's | TR21 |
| Sally Port | TR21 0JE |
| Tresco | TR24 |