| Place | Post Code |
|---|---|
| Idaiyur, Avudayarkoil | 614629 |
| Indanur, Avudayarkoil | 614618 |
| Iraiyamangalam, Avudayarkoil | 614629 |
| Irumbanadu, Avudayarkoil | 622204 |
| Jeevapuram, Avudayarkoil | 614618 |
| K. Siruvanur, Avudayarkoil | 614629 |
| Kadangudi, Avudayarkoil | 622204 |
| Kadathanpatti, Avudayarkoil | 622505 |
| Kadavakottai, Avudayarkoil | 614629 |
| Kallakattan, Avudayarkoil | 622104 |
| Kamalakudi, Avudayarkoil | 614618 |
| Kanakkanvayal, Avudayarkoil | 614618 |
| Kanapettai, Avudayarkoil | 622505 |
| Kandayankottai, Avudayarkoil | 614618 |
| Kannakkoor, Avudayarkoil | 614621 |
| Kannakkur, Avudayarkoil | 622204 |
| Kannamangalam, Avudayarkoil | 614629 |
| Kannariyendal, Avudayarkoil | 614618 |
| Kanur, Avudayarkoil | 614621 |
| Kappudayanpatti, Avudayarkoil | 622202 |
| Karaiyankottai, Avudayarkoil | 622204 |
| Karakkanvayal, Avudayarkoil | 622204 |
| Karambavayal, Avudayarkoil | 622204 |
| Karavayal, Avudayarkoil | 614618 |
| Karayapatti, Avudayarkoil | 622202 |
| Karuganendal, Avudayarkoil | 614618 |