| Locality | Post Code |
|---|---|
| Chintipan, Tlachichilco | 92670 |
| El Coyol, Tlachichilco | 92672 |
| Gómez Farias, Tlachichilco | 92670 |
| La Llave, Tlachichilco | 92670 |
| Landero y Coss, Tlachichilco | 92670 |
| Naranjal, Tlachichilco | 92670 |
| Otatitlan, Tlachichilco | 92670 |
| San José el Naranjal, Tlachichilco | 92670 |
| Texca Chiquito, Tlachichilco | 92670 |
| Tierra Colorada, Tlachichilco | 92676 |
| Tlachichilco, Tlachichilco | 92670 |
| Tzicatlan, Tlachichilco | 92673 |
| Xalame, Tlachichilco | 92678 |