21004 is the Postal Code/ZIP Code for the District of Aguas Zarcas in the Costa Rica Province of Alajuela and the Canton of San Carlos. The neighborhoods of Altamira, Bijagual, Boca Los Chiles, Caporal, Cerritos, Danta, Faroles, Garabito, Génesis, Las Parcelas, Las Rosas, Latino, Manantial, Montecristo, Nazareth, Nuevo Amanecer, Nuevo Garabito, Pura Vida, Reinosa, San Bosco, San Gerardo, Valle Hermosa and Viento Fresco are located in Postal Code 21004.
| Postal Code | 21004 |
| Postal Code Name | Aguas Zarcas |
| Province | Alajuela Province |
| Canton | San Carlos Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 21005 21006 21009 21011 21203 |