Ostrów [ struf] is a village in the administrative district of Gmina Brze nio, within Sieradz County, ód Voivodeship, in central Poland. It lies approximately 4 kilometres (2 mi) west of Brze nio, 17 km (11 mi) south-west of Sieradz, and 70 km (43 mi) south-west of the regional capital ód . The village has a population of 460. Gmina Brze nio is a rural gmina (administrative district) in Sieradz County, ód Voivodeship, in central Poland. Its seat is the village of Brze nio, which lies approximately 15 kilometres (9 mi) south-west of Sieradz and 67 km (42 mi) south-west of the regional capital ód . The gmina covers an area of 128.73 square kilometres (49.7 sq mi), and as of 2006 its total population is 6,351.