JoseFitani
📍 Geocoding & Lookup

Argentina Postal Code Finder

Enter any Argentina postal code and this tool returns the place name, state and coordinates instantly, with a marker on the map. The lookup runs live against the open Zippopotam database — type a code such as C1002 to see the result for yourself.

Zippopotam is community-maintained, so coverage varies by country and a valid code can occasionally return no match. When that happens, double-check the format (4-digit codes; the newer CPA format is alphanumeric) and confirm with Argentina's national postal service. Lookups are free, need no sign-up or API key, and nothing you enter is stored.

How to use this tool

1
Pick the country

The dropdown above the input is pre-set to Argentina on this page — you can switch it to any of the other 39 countries to compare postal systems.

2
Enter the postal code

Type the code in Argentina's format (4-digit codes; the newer CPA format is alphanumeric) — for example C1002 — and press Lookup or Enter.

3
Read the result

The tool shows the place name, state, latitude/longitude and a map marker for every locality attached to the code. If nothing is found, the message says so honestly — check the digits or confirm the code with the national postal service.

What people use this tool for

Confirming an Argentina postal code before posting mail

Look up the code — for example C1002 — before addressing letters or parcels to Argentina, so the item reaches the right sorting office. A single wrong digit can send a parcel to the wrong city.

Entering Argentina postcodes in checkout and address forms

Online shops and official forms in Argentina require the postcode field. Double-check an unfamiliar code (4-digit codes; the newer CPA format is alphanumeric) here before you pay or submit, and catch typos before they cause a failed delivery.

Pinning an Argentina location on the map from its postal code

Every result includes latitude and longitude — drop a pin for a district around Buenos Aires, plan a route, or geo-tag records without needing a full street address.

How it's calculated

Postal code lookup queries the public Zippopotam API directly from your browser: GET https://api.zippopotam.us/ar/{postal-code}. A successful response returns the country, the canonical post code and a list of places, each with place name, state, state abbreviation, latitude and longitude. The widget renders every returned place — name, state, decimal-degree coordinates — and drops a marker for each on the map (OpenStreetMap tiles via Leaflet).

If the API returns 404, the tool reports "not found" honestly: the code may be mistyped, or it may simply be absent from this open database. Coverage varies by country, so a missing code is never treated as proof the code is invalid — the message points you to Argentina's national postal service for confirmation.

No API key or account is needed, and nothing you type is stored on our servers — the postal code travels from your browser to Zippopotam and back. Keep lookups at a reasonable pace so the free public API stays available for everyone.

Related tools and resources

To go the other direction — place name to map position — use the City Finder. For the full address at given coordinates, try the Reverse Geocoder. Comparing postal systems? See the Egypt Postal Code Finder and the Sweden Postal Code Finder.

Frequently asked questions

How do I look up an Argentina postal code with this tool?

Make sure the country dropdown is set to Argentina — it already is on this page. Type the code in Argentina's format (4-digit codes; the newer CPA format is alphanumeric), for example C1002, and press Lookup. The tool queries the open Zippopotam database live and returns the place name, state and coordinates with a map marker. Lookups are free, need no sign-up or API key, and nothing you enter is stored.

What does an Argentina postal code look like?

In Argentina, postal codes follow this format: 4-digit codes; the newer CPA format is alphanumeric. A typical example is C1002. Enter the code exactly as it is normally written — including any spaces or dashes — because missing digits or wrong spacing usually produce a "not found" result.

Why did my Argentina postal code return “not found”?

Two possibilities: a typo — often a spacing or dash issue, since Argentina codes are written as 4-digit codes; the newer CPA format is alphanumeric — or the code is simply absent from the open Zippopotam database. Coverage varies by country, and this community-maintained database has gaps. Try C1002 to confirm the tool is working, then double-check your digits and confirm the code with Argentina's national postal service.

Is this Argentina postal code lookup official and free?

It is free and unlimited, with no account required — but it is not official. This is an independent lookup for Argentina's 4-digit codes; the newer CPA format is alphanumeric codes (for example C1002), built on the open Zippopotam database. For anything mail-critical, verify the code with Argentina's national postal service. Your browser queries the public API directly, and we do not log the codes you look up.

Data sources & methodology

  • Zippopotam — Open postal-code database queried live for every lookup; no API key required.
  • OpenStreetMap — Base map tiles for the result marker map.