TR - Truro
The postal area TR (Truro) comprises of the following post towns; these towns should be written in capital letters when used in addresses.
Postal Districts within TR - Truro
| Country | Post Town | Postal District |
| England | Truro | TR1 TR2 TR3 TR4 |
| St. Agnes | TR5 | |
| Perranporth | TR6 | |
| Newquay | TR7 TR8 |
|
| St. Columb | TR9 | |
| Penryn | TR10 | |
| Falmouth | TR11 | |
| Helston | TR12 TR13 |
|
| Camborne | TR14 | |
| Redruth | TR15 TR16 |
|
| Marazion | TR17 | |
| Penzance | TR18 TR19 TR20 |
|
| St Mary's | TR21 | |
| St Agnes | TR22 | |
| Bryher | TR23 | |
| Tresco | TR24 | |
| St Martin's | TR25 | |
| St Ives | TR26 | |
| Hayle | TR27 |
