Correos de México, also known as Sepomex, manages the national postal system through a standardized five-digit numeric infrastructure. This system organizes the 32 federal entities to ensure logistical efficiency in one of the most populous countries in the Americas. Accurate geographic coding is essential for resolving the complexities of overlapping neighborhood names and historical districts.
The Mexican Código Postal uses five numeric digits. The first two digits identify the state or a specific part of the capital, the third digit indicates the municipality or administrative ward, and the final two digits represent the specific neighborhood (colonia).
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