| Place | Postal Code |
|---|---|
| Adivalli, Madathukulam | 642205 |
| Alamarthur, Madathukulam | 642205 |
| Amandakadavoo, Madathukulam | 642201 |
| Ammapatti, Madathukulam | 642112, 642205 |
| Anikkadavu, Madathukulam | 642120 |
| Appiliapatti, Madathukulam | 642201 |
| Athukinathupatti, Madathukulam | 642206 |
| Athur, Madathukulam | 642204 |
| Ayyampalayampudur, Madathukulam | 642201 |
| Bengalore, Madathukulam | 642203 |
| Bommanaickenpatti, Madathukulam | 642202 |
| C. Nagoor, Madathukulam | 642202 |
| Cheran Nagar, Madathukulam | 642203 |
| Chinnappanpudur, Madathukulam | 642203 |
| Ganeshapuram, Madathukulam | 642113 |
| Goundappagoundanpudur, Madathukulam | 642203 |
| Gudimangalam, Madathukulam | 642201 |
| Guruvakalam, Madathukulam | 642204 |
| Guruvanvalasu, Madathukulam | 642203 |
| Illuppanagaram, Madathukulam | 642120 |
| Indira Nagar, Madathukulam | 642203 |
| Indirapuram, Madathukulam | 642102 |
| Itchipatti, Madathukulam | 642203 |
| Jakkampalayam, Madathukulam | 642204 |
| Jothipalayam, Madathukulam | 642203 |
| Kadathur, Madathukulam | 642203 |