Argentina Address Validation, Verification, and Autocomplete

You can explore all our address validation solutions in one place, including the Master address list, Address validation service, International address verification, USPS address verification tool, Bulk address validation, and Address autocomplete.

In Argentina, a valid address must match the country’s postal formatting rules. Verify that the postal code (CPA) follows the A9999 AAA format; it appears before locality; the street name comes before the house number. Include the Micropostal code (8-char alphanumeric) with province identifier as first letter where applicable. The standard Argentine address structure is: Street name, House number, Postal code, Locality.

Argentina uses the postal code format A9999 AAA. Locally, postal codes are referred to as “CPA.” First letter = province (ISO-3166-2); four digits = historical postal code; last three letters = micro postal code level (street segment or block side). Example address: Virrey Liniers 270, C1174ACF Buenos Aires. Postal codes are administered by Correo Argentino.

A properly formatted Argentine address follows this structure: Street name, House number, Postal code, Locality. In Argentina, the street name precedes the house number, and the postal code is placed before locality. A distinctive address element is the Micropostal code (8-char alphanumeric) with province identifier as first letter. Example: Virrey Liniers 270, C1174ACF Buenos Aires.

Address validation checks format and completeness — whether an address is properly structured and meets postal standards. Address verification goes further by confirming the address exists and is linked to a real recipient. For example, validating an Argentine address means checking that the postal code (CPA) follows the A9999 AAA format and appears before locality. Verifying it means confirming that a real recipient lives or operates at that specific address. Most businesses benefit from both: validation broadly for data quality, and verification for higher-risk situations like compliance or fraud prevention.

Yes, Argentina uses a postal code system (CPA) with the format A9999 AAA. First letter = province (ISO-3166-2); four digits = historical postal code; last three letters = micro postal code level (street segment or block side). GeoPostcodes covers 2,151,660 postal codes for Argentina. The national postal operator is Correo Argentino.

Start by validating the format against Argentine postal standards. Confirm the postal code (CPA) matches the A9999 AAA format and corresponds to the correct locality. The address should follow the structure: Street name, House number, Postal code, Locality. GeoPostcodes maintains 2,151,660 postal codes across 22,003 localities for Argentina to cross-reference against.

Bulk validating addresses in Argentina means checking large volumes of records against the A9999 AAA postal code format and 22,003 possible localities. API-based services process addresses one at a time, which introduces per-call costs, rate limits, and latency at scale. A self-hosted reference database lets you validate Argentine addresses locally with no API calls, no per-record fees, and no dependency on third-party uptime. GeoPostcodes provides 2,151,660 postal codes for Argentina, available as a downloadable dataset for direct integration into your validation pipeline.

Argentina has 2,151,660 postal codes (CPA), covering 22,003 localities across 601 administrative regions. Postal codes follow the A9999 AAA format. They are administered by Correo Argentino. GeoPostcodes maintains this dataset with regular updates as postal codes are added, merged, or retired.

Postal codes in Argentina are not static — Correo Argentino periodically adds, merges, and retires codes as populations shift and administrative boundaries are redrawn. With 2,151,660 active postal codes across 22,003 localities, even small changes can affect address validation accuracy. Businesses that rely on Argentine address data should use a regularly updated reference database rather than a one-time export to avoid mismatches over time.