Krosno County () is a unit of territorial administration and local government (powiat) in Lubusz Voivodeship, western Poland, on the German border. It came into being on 1 January 1999 as a result of the Polish local government reforms passed in 1998. Its administrative seat is the town of Krosno Odrzaà Âskie, which lies west of Zielona Góra and south of Gorzów Wielkopolski. The only other town is Gubin which is the biggest town in the county. It is situated on the German border west of Krosno Odrzaà Âskie.
The county covers an area of . As of 2019 its total population is 55,018, out of which the population of Gubin is 16,619, that of Krosno Odrzaà Âskie is 11,319, and the rural population is 27,080.
Krosno County is bordered by Sà Âubice County to the north-west, SulÃÂcin County to the north, à Âwiebodzin County to the north-east, Zielona Góra County to the east and à »ary County to the south. It also borders Brandenburg in Germany to the west.
The county is subdivided into seven gminas (one urban, one urban-rural and five rural). These are listed in the following table, in descending order of population.