| Place | Post Code |
|---|---|
| Thulajendra Maharajapuram, Thiruvaiyaru | 613203 |
| Tingalore, Thiruvaiyaru | 613204 |
| Tiruchinampoondi, Thiruvaiyaru | 613105 |
| Tiruchottuthurai, Thiruvaiyaru | 613202 |
| Tirukattupalli East, Thiruvaiyaru | 613104 |
| Tiruppayanam, Thiruvaiyaru | 613204 |
| Tiyagarajapuram, Thiruvaiyaru | 613701, 609802 |
| Umayaval Arkadu, Thiruvaiyaru | 613205 |
| Unjini, Thiruvaiyaru | 613104 |
| Uppukachipettai, Thiruvaiyaru | 613201 |
| Uthamanallur, Thiruvaiyaru | 613201 |
| Vadugakudi, Thiruvaiyaru | 613203 |
| Vaidyanathanpettai, Thiruvaiyaru | 613203 |
| Valappakudi, Thiruvaiyaru | 613104 |
| Vanarangudi, Thiruvaiyaru | 613104 |
| Varagur, Thiruvaiyaru | 613101 |
| Vediapuram, Thiruvaiyaru | 613205 |
| Veerasingampettai, Thiruvaiyaru | 613202 |
| Vella Mandapam, Thiruvaiyaru | 613205 |
| Vellamperambur, Thiruvaiyaru | 613101 |
| Velliyanallur, Thiruvaiyaru | 613204 |
| Venkatesamudram II Sethi, Thiruvaiyaru | 613104 |
| Vennamangalam, Thiruvaiyaru | 613602 |
| Vepangudi, Thiruvaiyaru | 613102 |
| Vilangudi, Thiruvaiyaru | 613204 |
| Vishnampettai, Thiruvaiyaru | 613105 |