Gmina Lubsko is an urban-rural gmina (administrative district) in Żary County, Lubusz Voivodeship, in western Poland. Its seat is the town of Lubsko, which lies approximately 21 kilometres (13 mi) north-west of Żary and 41 km (25 mi) south-west of Zielona Góra.The gmina covers an area of 182.69 square kilometres (70.5 sq mi), and as of 2006 its total population is 19,360 (out of which the population of Lubsko amounts to 14,767, and the population of the rural part of the gmina is 4,593).