| Place | Post Code |
|---|---|
| Carrero, San Benito | 685537 |
| Chinchamato, San Benito | 685531 |
| El Amarillo, San Benito | 685537 |
| El Junco, San Benito | 685537 |
| Guanomo, San Benito | 685531 |
| San Isidro, San Benito | 685537 |
| San Lorenzo, San Benito | 685537 |
| San Roque, San Benito | 685537 |
| Santa Bárbara, San Benito | 685537 |
| Zaque, San Benito | 685537 |