TR4 is in the county of Cornwall. It is 7km west of the city of Truro, and contains Porthtowan, Goonhavern, Roseworthy, Mount Hawke, and Blackwater. TR4 is a postcode district, also known as an outcode or outbound code.
The below map shows where TR4 is, and the boundary of the TR4 postcode district:
Postal Boundaries © GEOLYTIX copyright and database right 2012
TR4 is in the county of Cornwall.
| Porthtowan | Village |
| Goonhavern | Village |
| Roseworthy | Settlement |
| Mount Hawke | Village |
| Blackwater | Village |
| Chacewater | Village |
| Gollawater | Settlement |
| Jolly's Bottom | Settlement |
| Trispen | Village |
| Shortlanesend | Village |
| Mount | Hamlet |
| Rose | Village |
| Frogpool | Village |
| Perranwell | Hamlet |
| St Erme | Village |
| Cusgarne | Village |
| Twelveheads | Village |
| Bissoe | Hamlet |
| Zelah | Village |
| Perranzabuloe | Village |
| Coombe | Hamlet |
| Menagissey | Hamlet |
| St Allen | Settlement |
| Banns Vale | Suburb |
| Truthan | Hamlet |
| Idless | Hamlet |
| Helston Water | Hamlet |
| Lower Rose | Hamlet |
| Penhallow | Settlement |
| Callestick | Hamlet |
| Saveock | Hamlet |
Position of TR4 relative to nearby towns. Distance is measured from the centre of TR4 to the centre of the town.
Position of TR4 relative to nearby cities. Distance is measured from the centre of TR4 to the centre of the city.