21302 is the Postal Code/ZIP Code for the District of Aguas Claras in the Costa Rica Province of Alajuela and the Canton of Upala. The neighborhoods of Barrio Chupulún, Barrio El Anzuelo, Barrio El Golfo, Barrio La Ceiba, Barrio La Nueva Gloria, Comunales, Guinea, Las Parcelas and Vuelta San Pedro are located in Postal Code 21302.