| Place | Post Code |
|---|---|
| Devadur, Maduranthakam | 603306 |
| Dharmapuram, Maduranthakam | 603312 |
| Edayalam, Maduranthakam | 603310 |
| Elapakkam, Maduranthakam | 603201 |
| Eruvakkam, Maduranthakam | 603303 |
| Gendracheri, Maduranthakam | 603306 |
| Guddalur, Maduranthakam | 603306 |
| Gunankaranai, Maduranthakam | 603307 |
| Irumbedu, Maduranthakam | 603302 |
| Irusumanallur, Maduranthakam | 603303 |
| Isur, Maduranthakam | 603308 |
| Janakipuram, Maduranthakam | 603303, 603111 |
| Kadamalaiputhur, Maduranthakam | 603310 |
| Kadambur, Maduranthakam | 603202 |
| Kalanipakkam, Maduranthakam | 603306 |
| Kalathur, Maduranthakam | 603307 |
| Kallapiranpuram, Maduranthakam | 603308 |
| Kammalampoondi, Maduranthakam | 603406 |
| Karasangal, Maduranthakam | 603310 |
| Karikkili, Maduranthakam | 603107 |
| Karunagaracheri, Maduranthakam | 603107 |
| Karunagaravilagam, Maduranthakam | 603306 |
| Karunguli, Maduranthakam | 603303 |
| Kathrichery, Maduranthakam | 603303 |
| Kattu Karanaai, Maduranthakam | 603201 |
| Kattudevadur, Maduranthakam | 603313 |