Płock County is a unit of territorial administration and local government (powiat) in Masovian Voivodeship, east-central Poland. 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 Płock, although the city is not part of the county. The county contains three towns: Gąbin, 17 km (11 mi) south of Płock, Drobin, 29 km (18 mi) north-east of Płock, and Wyszogród, 39 km (24 mi) south-east of Płock.