| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Altos de Las Palmas, San Sebastián | 194508 |
| Postal/ZIP Codes in Barbillas, San Sebastián | 194508 |
| Postal/ZIP Codes in Cajibio, San Sebastián | 194508 |
| Postal/ZIP Codes in Chopiloma, San Sebastián | 194508 |
| Postal/ZIP Codes in Monterredondo, San Sebastián | 194508 |
| Postal/ZIP Codes in Nueva Providencia, San Sebastián | 194508 |
| Postal/ZIP Codes in Rionegro, San Sebastián | 194508 |
| Postal/ZIP Codes in San Sebastián, San Sebastián | 194501, 194507, 194509 |