| Place | Post Code |
|---|---|
| Hasanamapettai, Cheyyar | 604402 |
| Irumanthangal, Cheyyar | 604407 |
| Irumaram, Cheyyar | 632511 |
| Irumbedu, Cheyyar | 604403, 632317 |
| Irungal, Cheyyar | 604505 |
| Jaderi, Cheyyar | 604402 |
| Kaduganur, Cheyyar | 604503 |
| Kaganam, Cheyyar | 604410 |
| Kalaniapakkam, Cheyyar | 604409 |
| Kaliyur, Cheyyar | 604407 |
| Kalleri, Cheyyar | 631701 |
| Kammanthangal, Cheyyar | 604402 |
| Kanagambakkam, Cheyyar | 604410 |
| Kanikilluppai, Cheyyar | 631702 |
| Kanni Nagar, Cheyyar | 604505 |
| Kannigapuram, Cheyyar | 604407 |
| Karamedu, Cheyyar | 604504 |
| Karanai, Cheyyar | 631701 |
| Karandai, Cheyyar | 604410 |
| Karanthai Colony, Cheyyar | 604410 |
| Karikanthangal, Cheyyar | 604504 |
| Karikkanthangal, Cheyyar | 604407 |
| Karivelpattu, Cheyyar | 604409 |
| Katteri, Cheyyar | 604409 |
| Kattukudisai, Cheyyar | 604408 |
| Kidangudisai, Cheyyar | 632507 |