RadarAddress address · data · quality

Countries · Hungary

Hungary: how an address is written and what we verify

Every address in the country comes back in the national postal form and is checked against the national address register: street, house number, postcode, coordinates. Here you find how an address is written there, what we check and three before-and-after examples.

Try it on an address API documentation

What an address looks like

  • House number·after the street (“Hauptstraße 5”)
  • Postcode·4 digits; the country prefix in front (D-, F-, CH-) is removed
  • City·in capitals, in its local name
  • Country·country line and ISO code, in the reader's language

The city comes before the street, and the postcode before the city (“1052 Budapest, Váci utca 10”); the street type is a separate lower-case word (“utca”, “út”, “tér”, “körút”), and “u.” is expanded to “utca”. The postcode has four digits and in Budapest the second and third tell the district (1052 is the 5th). Hungary does not publish an open address register: we check against OpenStreetMap, where volunteers have mapped them.

What we verify

Addresses: from various sources, where volunteers have mapped them · postcodes: 99% · data as of 20 Sep 2026.

  • Street·exists in the municipality, written in full and in the register's spelling; abbreviations are expanded in the country's language
  • House number·exists on that street; if the street exists and the number does not, the outcome flags it
  • Postcode·confirmed or filled in by the register, in the country's format
  • Coordinates·latitude and longitude of the house number, with the precision declared
  • Autocomplete·the street completes as you type, from the register; the house number and the postcode come with the selection (API)
  • WooCommerce · PrestaShop·autocomplete at checkout and order verification with the plugins

© OpenStreetMap contributors · ODbL

Before and after

Three addresses written the way people write them — abbreviated, without postcode, in lower case — and how they come out: public buildings and streets of the city centre, verified down to the house number.

With the API

The same endpoint as every country: country_code is enough. The response carries the address in postal form, the outcome with the changes, and where the register is in service the coordinates, the municipality code and the district. Everything in the API documentation.

curl -X POST https://www.radaraddress.com/api/v1/contact \
  -H 'Authorization: Bearer YOUR_TOKEN' \
  -H 'Content-Type: application/json' \
  -d '{"address":"kossuth lajos tér 1-3","postcode":"1055","city":"budapest","country_code":"HU"}'

Frequently asked questions

Do you also verify addresses that are in a file?

Yes. In batch jobs a column with the country is enough, or the country set for the whole file: every row comes back in the country's postal form, with the outcome beside it and, where the register is in service, verified down to the house number.

What happens if an address is not in the register?

We say so. If the street exists and the house number does not, the outcome flags the house number; if the street is not found in the municipality, the address still comes out in the country's postal form, with the warning. We never invent a plausible address in place of the one that is missing.

Where do the data come from?

From OpenStreetMap (© OpenStreetMap contributors, ODbL licence): this country does not publish an open address register, and we answer with what volunteers have mapped. Where OpenStreetMap does not have the address, it comes out in the country's postal form without being declared wrong.

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