| Place | Postal Code |
|---|---|
| Toledo, San Isidro del General | 11901 |
| Tormenta, San Isidro del General | 11901 |
| Troconales, San Isidro del General | 11901 |
| Tronconales, San Isidro del General | 11901 |
| Tuis, San Isidro del General | 11901 |
| Unesco, San Isidro del General | 11901 |
| Valverde, San Isidro del General | 11901 |
| Villanueva, San Isidro del General | 11901 |