Municipal elections are held in Finland every four years. Statistics Finland produces official statistics from the elections. The preliminary statistics are published on the Internet, in the StatFin online service and on the statistics pages on municipal elections as soon as possible starting from the election night. The second data, or the final data are supplied to Statistics Finland after the election result is confirmed. After the confirmation of the election result, the confirmed data corresponding to the preliminary statistics are released on the statistics pages on the Internet and the StatFin databases are updated. Detailed data on municipal elections since 1992 can be found on Statistics Finland’s website on the specific page designated for them in the list of statistics by topic, and since 1976 in the StatFin online service. Statistics Finland receives the basic data for the elections from the Ministry of Justice’s election in-formation system, the technical implementation of which it has assigned to Tieto Group. Statistics Finland’s election data system comprises four election data files: regional file, party file, candidate file and candidate register.