| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Cabecera Municipal, Aguada | 685521 |
| Postal/ZIP Codes in Centro, Aguada | 685521 |
| Postal/ZIP Codes in El Palmar, Aguada | 685527 |
| Postal/ZIP Codes in Los Cedros, Aguada | 685527 |
| Postal/ZIP Codes in San Antonio, Aguada | 685527 |
| Postal/ZIP Codes in San Diego Yariguies, Aguada | 685521 |
| Postal/ZIP Codes in San Joaquín, Aguada | 685527 |
| Postal/ZIP Codes in San Martín, Aguada | 685527 |