Lwówek County is a unit of territorial administration and local government (powiat) in Lower Silesian Voivodeship, south-western Poland. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. The county covers an area of 709.9 square kilometres (274.1 sq mi). Its administrative seat is the town of Lwówek Śląski, and it also contains the towns of Gryfów Śląski, Mirsk, Wleń and Lubomierz.