Electoral districts of Poland (Polish: okręgi wyborcze, okręg wyborczy (sg.)) are defined by Polishelection 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.
List of Sejm constituencies
Sejm constituency distribution map
Tilegram (cartogram) of the Sejm electoral districts
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.