| Place | Post Code |
|---|---|
| Bosco Tosca, Castel San Giovanni | 29015 |
| Castel San Giovanni, Castel San Giovanni | 29015 |
| Creta, Castel San Giovanni | 29015 |
| Creta-Bruciate, Castel San Giovanni | 29015 |
| Fontana Pradosa, Castel San Giovanni | 29015 |
| Ganaghello, Castel San Giovanni | 29015 |
| Pievetta-Dogana Po, Castel San Giovanni | 29015 |