What is the name and length of the Argentine postal code?

In Argentina, the system is called the Código Postal Argentino (CPA). It is an eight-character alphanumeric code (e.g., C1000ABD).

What is the postal code for Buenos Aires?

Buenos Aires City uses codes starting with the letter C; for example, the central business district often uses C1000 or specific CPAs like C1000ABA.

What does the first letter of the CPA represent?

The initial letter represents the province according to the ISO 3166-2:AR standard; for example, B is for Buenos Aires Province, C is for the City of Buenos Aires, and X is for Córdoba.

How can I find a specific Código Postal in Argentina?

You can use the Postindex.net search bar or browse our regional directory of Argentina to find accurate Código Postals for any city or street.

Argentina Código Postal — Full List of Regions

Argentina Statistic

Capital

Buenos Aires

ISO Alpha-2

ISO Alpha-3

ARG

Calling code

+54

Currency

Argentine Peso ($)

Code Format

ANNNNAAA

Regions / States

Total Postcodes

20,260

About Argentina Postal System

Correo Argentino is the national provider managing the delivery infrastructure across Argentina's 23 provinces and the autonomous city of Buenos Aires. The country transitioned to the CPA (Código Postal Argentino) to improve sorting accuracy in high-density urban zones. This alphanumeric system serves as a precise geographic tool for logistics and e-commerce across the diverse Southern Cone landscape.

Address Example in Argentina

SR. JUAN PEREZ
CALLE FALUCHO 123
B7600BHI MAR DEL PLATA
ARGENTINA

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Code Structure

The Código Postal Argentino (CPA) consists of eight characters. The first letter identifies the province, the four digits represent the city or locality, and the final three letters identify the specific face of the city block where the address is located.

FAQ about Argentina

Popular Código Postal

Code	Locality	Region
3196	Buena Vista	Corrientes
3302	Buena Vista	Corrientes
3196	San Antonio	Corrientes
3222	San Antonio	Corrientes
3224	San Jose	Corrientes
3302	San Jose	Corrientes
3196	San Juan	Corrientes
3230	San Juan	Corrientes
6214	San Jose	La Pampa
6228	San Jose	La Pampa
3749	San Isidro	Santiago Del Estero
4206	San Isidro	Santiago Del Estero