Chojnice County is a unit of territorial administration and local government (powiat) in Pomeranian Voivodeship, northern 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 Chojnice, which lies south-west of the regional capital Gdansk. The county also contains the towns of Czersk, lying east of Chojnice, and Brusy, north-east of Chojnice.