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Browser-based VTJkysely application

For an organisation that wishes to retrieve individual population data, but does not have the need or possibility to retrieve data from the Population Information System for processing in its own organisation's information system.

VTJkysely is a browser-based service provided by the Digital and Population Data Services Agency where you can retrieve individual up-to-date personal data, building information, or information on dwellings from the Population Information System.

The exact data content disclosed to the customer organisation is determined with the Digital and Population Data Services Agency on a case-by-case basis. As a rule, unique identifiers (such as the personal identity code or the building code) are used as search criteria.

VTJkysely requires two-step authentication

The use of VTJkysely requires a data permit issued by the Digital and Population Data Services Agency ​​​​​​​and the organisation's commitment to the terms of the permit. The application for a data permit is made through the Digital and Population Data Services Agency's eServices.

VTJkysely is available only in Finnish and Swedish, and the user must understand either language.

The application must include the purpose for which the data is to be used, a reasoning of why the data is required and an account of the data protection. Please read the terms and conditions for the use of the VTJkysely (in Finnish or in Swedish).

If you need help in preparing the application for the data access authorisation (for example, in the specifying of the data content or in matters related to VTJkysely user management), you can contact VTJkysely experts at [email protected]

Processing time

  • Processing time for the application for a data access authorisation for the VTJkysely service is about six weeks.

  • Processing time for the applications submitted by municipalities and joint municipal authorities is about two weeks.


The instructions for using VTJkysely are available only in Finnish and Swedish.

VTJkysely has a section called "Instructions", which contains all the instructions for VTJkysely. The link to the instructions is displayed after the role is selected from the VTJkysely home page.

Instructions for logging in to VTJkysely: Finnish - Swedish

Frequently asked questions

Links to Acts

Laki väestötietojärjestelmästä ja Digi- ja väestötietoviraston varmennepalveluista (Act on the Population Information System and the Certificate Services of the Digital and Population Data Services Agency, 661/2009)

Data Protection Act (1050/2018)

Valtiovarainministeriön asetus Digi- ja väestötietoviraston suoritteiden maksuista vuonna 2024 (Ministry of Finance Decree on Fees Charged for Digital and Population Data Services Agency Performances in 2024, 1142/2023)​​​​​​


Population of Finland 5 631 644