| Place | Post Code |
|---|---|
| Karunkadu, Avudayarkoil | 614618 |
| Karuppukkurisi Lb, Avudayarkoil | 614618 |
| Karuvur, Avudayarkoil | 622204 |
| Kasavayal, Avudayarkoil | 614630 |
| Kathiramangalam, Avudayarkoil | 614629 |
| Kattukkarai, Avudayarkoil | 614618 |
| Kavadukudi, Avudayarkoil | 614629 |
| Kavathukudi, Avudayarkoil | 614629 |
| Keelakari, Avudayarkoil | 614618 |
| Keelaperuthani, Avudayarkoil | 614618 |
| Keelavayal, Avudayarkoil | 614618 |
| Keeranur, Avudayarkoil | 614621 |
| Kidangivayal, Avudayarkoil | 614618 |
| Kilavasathanur, Avudayarkoil | 614629 |
| Kilavetti, Avudayarkoil | 614629 |
| Kodikalam, Avudayarkoil | 622204 |
| Kodur, Avudayarkoil | 622204 |
| Kokkuvellayankadu, Avudayarkoil | 622202 |
| Koneriyendal, Avudayarkoil | 622204 |
| Kongaranvayal, Avudayarkoil | 622204 |
| Koothangudi, Avudayarkoil | 622204 |
| Kothaimangalam, Avudayarkoil | 614629 |
| Kothalangudi, Avudayarkoil | 622204 |
| Kothamangalam, Avudayarkoil | 614629 |
| Kottapulikarai, Avudayarkoil | 622505 |
| Kovanivayal, Avudayarkoil | 614629 |