| Locality | Post Code |
|---|---|
| San Isidro, Tecamachalco | 75490 |
| San José, Tecamachalco | 75487 |
| San José la Portilla, Tecamachalco | 75499 |
| San José Machorro, Tecamachalco | 75495 |
| San Mateo Tlaixpan, Tecamachalco | 75490 |
| San Nicolás, Tecamachalco | 75486 |
| San Sebastián, Tecamachalco | 75487 |
| Santa Rosa, Tecamachalco | 75486 |
| Santiago Alseseca, Tecamachalco | 75485 |
| Tecamachalco, Tecamachalco | 75480, 75483, 75484, 75486, 75487 |
| Veracrucito, Tecamachalco | 75495 |
| Xochimilco, Tecamachalco | 75485 |