Brzostek is a town in Dębica County, Subcarpathian Voivodeship, south-eastern Poland. It is the seat of the gmina called Gmina Brzostek. The town has a population of 2,597 (02.06.2009). It lies on the Wisłoka river, in the foothills of the Carpathians, approximately 19 kilometres (12 mi) south of Dębica and 46 km (29 mi) west of the regional capital Rzeszów. Brzostek is a local center of education and commerce.