Zielonka, Sępólno County

Zielonka is a village in the administrative district of Gmina Sośno, within Sępólno County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 3 km north-east of Sośno, 14 km south-east of Sępólno Krajeńskie, and 37 km north-west of Bydgoszcz.