Ostrówek is a village in the administrative district of Gmina Kocza a, within Cz uchów County, Pomeranian Voivodeship, in northern Poland. It lies approximately 8 kilometres (5 mi) north of Kocza a, 40 km (25 mi) north-west of Cz uchów, and 110 km (68 mi) south-west of the regional capital Gda sk. The village has a population of 36. Gmina Kocza a is a rural gmina (administrative district) in Cz uchów County, Pomeranian Voivodeship, in northern Poland. Its seat is the village of Kocza a, which lies approximately 35 kilometres (22 mi) north-west of Cz uchów and 115 km (71 mi) south-west of the regional capital Gda sk. The gmina covers an area of 222.41 square kilometres (85.9 sq mi), and as of 2006 its total population is 3,481.