For elections to the Riksdag, county council assemblies and municipal assemblies, there shall be a geographically defined area for which members shall be elected for the decisionmaking assembly to which the election relates (constituencies). Sweden constitutes a single constituency for elections to the European Parliament.

Unless otherwise provided, when applying this chapter the number of persons entitled to vote in an election shall be estimated on the basis of the information on 1 March of the election year contained in the population registration database in accordance with the Act (2001:182) on the Processing of Personal Data in the Swedish Tax Agency’s population registration operation .