Electoral districts of Poland (, ()) are defined by Polish election law. Electoral districts can be divided depending on whether they are individual entities or parts of a larger electoral district with regard to elections to 1) parliament (Sejm) and Senate 2) local offices and 3) European Parliament. Each district has a number of mandates calculated on the basis of its population.
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The numbers of elected MEPs in districts may change every election, because to European Parliament are elected 51 persons (52 after brexit) with the highest score in the country.