10704 is the Postal Code/ZIP Code for the District of Piedras Negras in the Costa Rica Province of San José and the Canton of Mora.
| Postal Code | 10704 |
| Postal Code Name | Piedras Negras |
| Province | San José Province |
| Canton | Mora Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 10407 10408 10701 10705 10706 10707 20111 |