Results of nationwide general elections in Poland from 1990 to 2024 in the unified territorial aggregation of electoral districts for the Sejm and the Senate: Database GeoElections Poland 1.0

Dataset of all general elections (national presidential and parliamentary elections, elections to the European Parliament) held in Poland between 1990 and 2024. These datasets correspond to two degrees of spatial aggregation - 41 electoral districts (constituencies) for the Sejm and 100 for the Senate. In this dataset, for the first time, it was possible to collate voting results for electoral committees in unified territorial units. Such a compilation is unique and difficult to compile due to the multiple changes of administrative boundaries in Poland, including as a result of the amendment of electoral systems. In addition, only part of this data is publicly available, and the way it is presented makes it possible to create maps and comparisons, subject to time-consuming processing into any of the GIS systems. Therefore, we attach to the data a vector (SHP) map of electoral districts for the Diet and Senate, to which it is easy to attach the developed relational dataset in XLS format in any year and aggregation.