| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Aurel Vlaicu, Geoagiu | 335401 |
| Postal/ZIP Codes in Băcâia, Geoagiu | 335402 |
| Postal/ZIP Codes in Bozeş, Geoagiu | 335403 |
| Postal/ZIP Codes in Cigmău, Geoagiu | 335404 |
| Postal/ZIP Codes in Gelmar, Geoagiu | 335405 |
| Postal/ZIP Codes in Geoagiu, Geoagiu | 335400 |
| Postal/ZIP Codes in Geoagiu-Băi, Geoagiu | 335450 |
| Postal/ZIP Codes in Homorod, Geoagiu | 335406 |
| Postal/ZIP Codes in Mermezeu-Văleni, Geoagiu | 335407 |
| Postal/ZIP Codes in Renghet, Geoagiu | 335408 |
| Postal/ZIP Codes in Văleni, Geoagiu | 335409 |