| Place | Post Code |
|---|---|
| Albuccione, Guidonia Montecelio | 00012 |
| Colle Verde, Guidonia Montecelio | 00012 |
| Colleverde II, Guidonia Montecelio | 00012 |
| Guidonia, Guidonia Montecelio | 00012 |
| Guidonia Montecelio, Guidonia Montecelio | 00010, 00011, 00012 |
| La botte, Guidonia Montecelio | 00012 |
| Montecelio, Guidonia Montecelio | 00012 |
| Setteville, Guidonia Montecelio | 00010 |
| Villalba, Guidonia Montecelio | 00012 |
| Villanova, Guidonia Montecelio | 00012 |