40103 is the Postal Code/ZIP Code for the District of San Francisco in the Costa Rica Province of Heredia and the Canton of Heredia. The neighborhoods of Bernardo Benavides, Cuenca Norte, Cuenca Sur, El Carao, El Laurel, El Nogal, El Roble, Gran Samaria, La Aurora, La Radial 1, Las Cloacas, Los Heredianos, Los Laureles, Los Sauces, Nísperos 1, Nísperos 2, Nísperos 3 (La Milpa), Nísperos 4 y 5 (Plan Piloto), Palacios Universitarios, Quesada and Villa Paola are located in Postal Code 40103.
| Postal Code | 40103 |
| Postal Code Name | San Francisco |
| Province | Heredia Province |
| Canton | Heredia Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 40101 40102 40104 40306 40703 40801 40803 40902 |