| Place | Post Code |
|---|---|
| Gurupeedapuram, Kallakkurichi | 606305 |
| Indili, Kallakkurichi | 606213 |
| Iriyur, Kallakkurichi | 606204 |
| Irudayapuram, Kallakkurichi | 606206 |
| Ka. Mamanandal, Kallakkurichi | 606202 |
| Kachakudi, Kallakkurichi | 606305 |
| Kachellampattu, Kallakkurichi | 606207 |
| Kachirapalayam, Kallakkurichi | 606207 |
| Kadambur, Kallakkurichi | 606206 |
| Kadathur, Kallakkurichi | 606201 |
| Kakkannagar, Kallakkurichi | 606305 |
| Kalasamudram, Kallakkurichi | 606301 |
| Kallakurichi, Kallakkurichi | 606202 |
| Kallakurichi South, Kallakkurichi | 606213 |
| Kallanatham, Kallakkurichi | 606201 |
| Kalsirunagalur, Kallakkurichi | 606205 |
| Kanaiyar, Kallakkurichi | 606107 |
| Kanangur, Kallakkurichi | 606203 |
| Kandachimangalam, Kallakkurichi | 606203 |
| Kaniyamur, Kallakkurichi | 606201 |
| Karadichittur, Kallakkurichi | 606207 |
| Karanur, Kallakkurichi | 606213 |
| Karunguli, Kallakkurichi | 606204 |
| Karunthalakurichi, Kallakkurichi | 606301 |
| Kattananthal, Kallakkurichi | 606204 |
| Kattusalai, Kallakkurichi | 606305 |