Myszków County is a unit of territorial administration and local government (powiat) in Silesian 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 Myszków, which lies north-east of the regional capital Katowice. The county also contains the towns of Zarki, lying north-east of Myszków, and Kozieglowy, west of Myszków.