| Place | Post Code |
|---|---|
| Kalavai, Arcot | 632506 |
| Kaniyanur, Arcot | 632506 |
| Kannigapuram, Arcot | 632318 |
| Karadi Malai, Arcot | 632507 |
| Karikkanthangal, Arcot | 632506 |
| Karivedu, Arcot | 632506 |
| Karrikkanthangal, Arcot | 632506 |
| Kilambadi, Arcot | 632503 |
| Kilanthangal, Arcot | 632506 |
| Kilpadi, Arcot | 632506 |
| Kilvisharam, Arcot | 632509 |
| Kirambadi, Arcot | 632503 |
| Kodali, Arcot | 632518 |
| Kotai Pulisanthu, Arcot | 632507 |
| Krishnavaram, Arcot | 632521 |
| Kukkundi, Arcot | 632503 |
| Kunjirappanthangal, Arcot | 632503 |
| Kuppam, Arcot | 632507 |
| Kuppudisatham, Arcot | 632518 |
| Kurumudithangal, Arcot | 632506 |
| Kuthiyam, Arcot | 632506 |
| Ladavaram, Arcot | 632503 |
| Malaimedu, Arcot | 632507 |
| Malligapuram, Arcot | 632511 |
| Mambakkam, Arcot | 632318 |
| Mangadu, Arcot | 632503 |