Koszalin County (Polish: powiat koszaliński) is a unit of territorial administration and local government (powiat) in West Pomeranian Voivodeship, north-western Poland, on the Baltic coast. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat is the city of Koszalin, although the city is not part of the county (it constitutes a separate city county).