Files to be downloaded
The Postal Code Data File contains Finnish postal codes that are valid as addresses, along with their basic information.
The Basic Address File contains all Finnish (excluding Åland Islands) postal codes that are valid as addresses, streets and municipalities. If a street is divided into several postal codes, the correct postal code is indicated by building numbers.
Information about changes in postal codes over the previous month.
Download the file of your choice
Read the service description and terms of use. The description contains file names and record descriptions, for instance. When transferring the files or service documents, the service description and terms of use must always be delivered, too.