| Place | Post Code |
|---|---|
| Acharapakkam, Maduranthakam | 603301 |
| Agili, Maduranthakam | 603319 |
| Alapakkam, Maduranthakam | 603301 |
| Allanur, Maduranthakam | 603201 |
| Allur, Maduranthakam | 603310 |
| Ananthamangalam, Maduranthakam | 603307 |
| Andavakkam, Maduranthakam | 603303 |
| Annangal, Maduranthakam | 603307 |
| Arayapakkam, Maduranthakam | 603303 |
| Ariyanur, Maduranthakam | 603311 |
| Arungunam, Maduranthakam | 603306 |
| Athimanam, Maduranthakam | 603308 |
| Athivakkam, Maduranthakam | 603301, 603306 |
| Athiyur, Maduranthakam | 603111 |
| Athur, Maduranthakam | 603310 |
| Avirimedu, Maduranthakam | 603309 |
| Baburayanpettai, Maduranthakam | 603201 |
| Budur, Maduranthakam | 603308 |
| Bukkathurai, Maduranthakam | 603308 |
| Chinnavenmani, Maduranthakam | 603311 |
| Chinthamani, Maduranthakam | 603319 |
| Chitamur, Maduranthakam | 603107 |
| Chithalamangalam, Maduranthakam | 603303 |
| Chitharkadu, Maduranthakam | 603302 |
| Chithathur, Maduranthakam | 603314 |
| Chitravadi, Maduranthakam | 603309 |