| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Cabecera Municipal, Riofrío | 761038 |
| Postal/ZIP Codes in Fenicia, Riofrío | 761038 |
| Postal/ZIP Codes in La Guaira, Riofrío | 761038 |
| Postal/ZIP Codes in Portugal de Piedra, Riofrío | 761038 |
| Postal/ZIP Codes in Riofrío, Riofrío | 761030, 761037 |