Zawiercie County (Polish: powiat zawierciański) 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 Zawiercie, which lies 41 kilometres (25 mi) north-east of the regional capital Katowice. The county contains five other towns: Poręba, 6 km (4 mi) west of Zawiercie, Łazy, 8 km (5 mi) south of Zawiercie, Ogrodzieniec, 9 km (6 mi) south-east of Zawiercie, Szczekociny, 33 km (21 mi) north-east of Zawiercie, and Pilica, 18 km (11 mi) east of Zawiercie.
The county covers an area of 1,003.27 square kilometres (387.4 sq mi). As of 2019 its total population was 118,020. The most populated towns are Zawiercie with 49,334 inhabitants and Poręba with 8,525 inhabitants.
The county is subdivided into 10 gminas (two urban, four urban-rural and four rural). These are listed in the following table, in descending order of population.
