Instituto Postal Dominicano (INPOSDOM) is the regulatory body responsible for the Dominican Republic’s postal infrastructure. The five-digit coding system was designed to organize the nation’s 31 provinces and the Distrito Nacional into logical delivery sectors. Reliable postal data is critical in the Dominican Republic to support the growing e-commerce sector and international logistics hubs.
The Dominican Código Postal consists of five digits. The first three digits represent the province or major urban region, while the last two digits denote the specific neighborhood, sector, or delivery route.