Piaseczno County Powiat piaseczyński
County
Flag Coat of arms
Location within the voivodeship
Division into gminas
Coordinates (Piaseczno): 52°4′0″N 21°1′0″E / 52.06667°N 21.01667°E / 52.06667; 21.01667
Country	Poland
Voivodeship	Masovian
Seat	Piaseczno
Gminas	Total 6 Gmina Góra Kalwaria Gmina Konstancin-Jeziorna Gmina Lesznowola Gmina Piaseczno Gmina Prażmów Gmina Tarczyn
Area
• Total	621.04 km2 (239.78 sq mi)
Population  (2019)
• Total	186,460
• Density	300/km2 (780/sq mi)
• Urban	81,465
• Rural	104,995
Car plates	WPI
Website	http://www.piaseczno.pl

Piaseczno County (Polish: powiat piaseczyński) 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 and largest town is Piaseczno, which lies 17 kilometres (11 mi) south of Warsaw. The county contains three other towns: Konstancin-Jeziorna, 8 km (5 mi) east of Piaseczno, Góra Kalwaria, 18 km (11 mi) south-east of Piaseczno, and Tarczyn, 16 km (10 mi) south-west of Piaseczno.

The county covers an area of 621.04 square kilometres (239.8 sq mi). 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.^[1]

Neighbouring counties

Piaseczno County is bordered by the city of Warsaw to the north, Otwock County to the east, Grójec County to the south, Grodzisk Mazowiecki County to the west and Pruszków County to the north-west.

Administrative division

The county is subdivided into six gminas (four urban-rural and two rural). These are listed in the following table, in descending order of population.