11904 is the Postal Code/ZIP Code for the District of Rivas in the Costa Rica Province of San José and the Canton of Pérez Zeledón. The neighborhoods of Alaska, Boquete, El Carmen, La Bambú, La Chispa, Linda Vista, Los Arias, Los Mora, Lourdes, Monge Rodríguez, Monterrey, Salitre, San Antonio, San Francisco, San Gerardo, San José, San Martín, Tirrá and Zapotal are located in Postal Code 11904.