Szubin is a town in Nakło County, Kuyavian-Pomeranian Voivodeship, Poland, located southwest of Bydgoszcz. It has a population of aroun…Szubin is a town in Nakło County, Kuyavian-Pomeranian Voivodeship, Poland, located southwest of Bydgoszcz. It has a population of around 9,333. It is located on the Gąsawka River in the ethnocultural region of Pałuki.