Piaseczno County
Piaseczno County is a unit of territorial administration and local government 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 and largest town is Piaseczno, which lies south of Warsaw. The county contains three other towns: Konstancin-Jeziorna, east of Piaseczno, Góra Kalwaria, south-east of Piaseczno, and Tarczyn, south-west of Piaseczno.
The county covers an area of. As of 2019, its total population is 186,460; out of which, the population of Piaseczno is 48,286, that of Konstancin-Jeziorna is 17,023, that of Góra Kalwaria is 12,040, that of Tarczyn is 4,116, and the rural population is 81,465.