| Area Code: | TR |
The TR postcode area, also known as the Truro postcode area,[1] is a group of 27 postcode districts in South West England, within 15 post towns. These cover west Cornwall, including Truro, Penzance, Camborne, Falmouth, Hayle, Helston, Marazion, Newquay, Penryn, Perranporth, Redruth, St Agnes, St Columb and St Ives, plus the Isles of Scilly.
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The approximate coverage of the postcode districts:
|-! TR1| TRURO| Truro| Cornwall Council|-! TR2| TRURO| Gerrans, Probus, St Mawes, Tregony, Truro, Veryan, West Portholland| Cornwall Council|-! TR3| TRURO| Truro, Perranwell Station, Feock, Playing Place, Ponsanooth| Cornwall Council|-! TR4| TRURO| Blackwater, Frogpool, Goonhavern, Trispen| Cornwall Council|-! TR5| ST. AGNES| St Agnes, Mithian| Cornwall Council|-! TR6| PERRANPORTH| Perranporth, Bolingey, Perrancoombe| Cornwall Council|-! TR7| NEWQUAY| Newquay| Cornwall Council|-! TR8| NEWQUAY| Carland Cross, Mitchell, Quintrell Downs| Cornwall Council|-! TR9| ST. COLUMB| St Columb Major| Cornwall Council|-! TR10| PENRYN| Penryn| Cornwall Council|-! TR11| FALMOUTH| Falmouth, Flushing, Mylor Bridge, Constantine, Mawnan Smith| Cornwall Council|-! TR12| HELSTON| Helston, Mullion| Cornwall Council|-! TR13| HELSTON| Helston| Cornwall Council|-! TR14| CAMBORNE| Camborne| Cornwall Council|-! TR15| REDRUTH| Redruth, Pool| Cornwall Council|-! TR16| REDRUTH| Lanner, Carharrack, Gwennap, St Day, Portreath| Cornwall Council|-! TR17| MARAZION| Marazion| Cornwall Council|-! TR18| PENZANCE| Penzance| Cornwall Council|-! TR19| PENZANCE| Pendeen, St Buryan| Cornwall Council|-! TR20| PENZANCE| Ludgvan, Penzance, Praa Sands| Cornwall Council|-! TR21| ISLES OF SCILLY| St Mary's, Hugh Town| Council of the Isles of Scilly|-! TR22| ISLES OF SCILLY| St Agnes| Council of the Isles of Scilly|-! TR23| ISLES OF SCILLY| Bryher| Council of the Isles of Scilly|-! TR24| ISLES OF SCILLY| Tresco| Council of the Isles of Scilly|-! TR25| ISLES OF SCILLY| St Martin's| Council of the Isles of Scilly|-! TR26| ST. IVES| St Ives, Zennor| Cornwall Council|-! TR27| HAYLE| Hayle| Cornwall Council|}The TR25 postcode district covered the smallest population in the UK as of the 2011 census.[2]