| Locality | Post Code |
|---|---|
| 5 de Mayo, Coacoatzintla | 91372 |
| Chapultepec, Coacoatzintla | 91376 |
| Coacoatzintla, Coacoatzintla | 91370 |
| El Aguacate, Coacoatzintla | 91379 |
| La Ventana, Coacoatzintla | 91378 |
| Las Coles, Coacoatzintla | 91377 |
| Lomas del Pedregal, Coacoatzintla | 91372 |
| Los Planes (Cerro Gordo), Coacoatzintla | 91373 |
| Paxtepec, Coacoatzintla | 91373 |
| Pueblo Viejo, Coacoatzintla | 91375 |
| Rincón de Chapultepec, Coacoatzintla | 91376 |
| Tlachinola, Coacoatzintla | 91374 |