| Place | Post Code |
|---|---|
| Agua Agria, San Mateo | 20401 |
| Agua Fria, San Mateo | 20401 |
| Calera, San Mateo | 20401 |
| Cenízaro, San Mateo | 20401 |
| Centeno, San Mateo | 20401 |
| Desamparados, San Mateo | 20401 |
| Dulce Nombre, San Mateo | 20401 |
| Higuito, San Mateo | 20401 |
| Izarco, San Mateo | 20401 |
| Maderal, San Mateo | 20401 |
| Ramadas, San Mateo | 20401 |
| San Juan de Dios, San Mateo | 20401 |
| San Mateo, San Mateo | 20401 |
| All postal codes in San Mateo | |
|---|---|
| Desmonte, San Mateo | |
| Jesús María, San Mateo | |
| San Mateo, San Mateo | |