| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in El Horno, Villanueva | 445008 |
| Postal/ZIP Codes in Los Guamachitos, Villanueva | 445007 |
| Postal/ZIP Codes in Los Quemaos Plano, Villanueva | 445007 |
| Postal/ZIP Codes in Municipio de Villanueva, Villanueva | 445001 |
| Postal/ZIP Codes in Villanueva, Villanueva | 445001, 445008 |