Zwoleń is a town located in eastern Poland within the Masovian Voivodeship. It is situated approximately 30 kilometres east of Radom and serves as the capital of Zwoleń County.
The town is positioned on the Zwoleńka river and belongs to the Sandomierz Land of the historic province of Lesser Poland. As of 2009, the population of Zwoleń was recorded at 8,048 residents.