Código Postal Argentino

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The Código Postal Argentino , CPA for short , has been the eight-digit and alphanumeric scheme for postal codes in Argentina since 1998 . The CPA was decided by the Secretaría de Comunicaciones with resolution 1368/98. It is mandatory to use it from the beginning of April 1999.

Composition of the CPA

A CPA is divided into three parts:

  • a letter that stands for the province or the capital district,
  • four digits that reflect the city, town or district and
  • three letters that identify a single block and the street.

The introductory letter corresponds to the code provided in ISO 3166-2: AR . The four digits largely correspond to the Argentine postal code system valid until 1998. A single CPA was assigned to locations with fewer than 500 residents.


The new CPA has not yet been fully implemented in Argentina; the old four-digit postcodes are often still used.

When using the CPA, it is usually placed in a separate line under the street or apartment name, but above the location. The CPA must be written without a prefix, the letters in the CPA as uppercase and the individual parts of the CPA without being separated by hyphens or spaces.


Museo de Arte Latinoamericano de Buenos Aires
Avenida Figueroa Alcorta N ° 3415
Ciudad Autónoma de Buenos Aires

Web links

Individual evidence

  1. Consulta Código Postal Argentino Correo Argentino, accessed February 10, 2019.