Barcin is a town in central Poland, in Kuyavian-Pomeranian Voivodeship, in Żnin County. As of December 2021, the town has a population of 7…Barcin is a town in central Poland, in Kuyavian-Pomeranian Voivodeship, in Żnin County. As of December 2021, the town has a population of 7,255.