| Place | Post Code |
|---|---|
| Erikuppam Vadugasathu, Arani | 606903 |
| Giddan Gudisai, Arani | 632311 |
| Govindarajapuram, Arani | 632311 |
| Gudalore, Arani | 606907 |
| Gurukulanthangal, Arani | 606902 |
| Housing Board, Arani | 632316 |
| Irumbuli, Arani | 632311 |
| Jambukonambut, Arani | 606907 |
| Kaikilanthangal, Arani | 606903 |
| Kalithangal, Arani | 632317 |
| Kallaripettai, Arani | 632317 |
| Kamakkur, Arani | 606903 |
| Kanakan Thoppu, Arani | 632311 |
| Kanikiluppai, Arani | 632317 |
| Kannamangalam, Arani | 632311 |
| Karumar Kulam, Arani | 632512 |
| Karunasorampattu, Arani | 632317 |
| Katteri, Arani | 632317 |
| Kattukanur, Arani | 632312 |
| Kayapakkam, Arani | 632317 |
| Keelaiyur, Arani | 632317 |
| Kilnagar, Arani | 632315 |
| Kilpallipattu, Arani | 632311 |
| Kilpattu, Arani | 606907 |
| Kolakkaravadi, Arani | 606902 |
| Kollai Medu, Arani | 632311 |