Chrzanów County (powiat chrzanowski) is a unit of territorial administration and local government (powiat) in Lesser Poland Voivodeship, southern Poland. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and largest town is Chrzanów, which lies 40 km west of the regional capital Kraków. The county contains three other towns: Trzebinia, 8 km north-east of Chrzanów, Libiąż, 8 km south-west of Chrzanów, and Alwernia, 12 km south-east of Chrzanów.
The county covers an area of 371.49 km2. As of 2019 its total population is 124,937, out of which the population of Chrzanów is 36,717, that of Trzebinia is 19,778, that of Libiąż is 17,017, that of Alwernia is 3,368, and the rural population is 40,778.
Chrzanów County is bordered by Olkusz County to the north-east, Kraków County to the east, Wadowice County to the south, Oświęcim County to the south-west and the city of Jaworzno to the west.
