| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in San Antonio, Santo Tomé | W3340 XBK |
| Postal/ZIP Codes in San Francisco, Santo Tomé | W3340 XBL |
| Postal/ZIP Codes in San Gabriel, Santo Tomé | W3340 XAL |
| Postal/ZIP Codes in San Justo, Santo Tomé | W3342 XAK |
| Postal/ZIP Codes in San Vicente, Santo Tomé | W3342 XAL |
| Postal/ZIP Codes in Santo Tomé, Santo Tomé | W3340 |
| Postal/ZIP Codes in Sosa, Santo Tomé | W3342 XAM |
| Postal/ZIP Codes in Tablada, Santo Tomé | W3340 XAM |
| Postal/ZIP Codes in Tareirí, Santo Tomé | W3342 XAN |
| Postal/ZIP Codes in Topador, Santo Tomé | W3340 XAO |
| Postal/ZIP Codes in Tres Taperas, Santo Tomé | W3340 XAP |
| Postal/ZIP Codes in Vuelta del Ombú, Santo Tomé | W3342 XAO |