Konstancin-Jeziorna

Konstancin-Jeziorna
Old paper mill and shops
Flag Coat of arms
Konstancin-Jeziorna
Coordinates: 52°5′N 21°7′E / 52.083°N 21.117°E / 52.083; 21.117
Country	Poland
Voivodeship	Masovian
County	Piaseczno
Gmina	Konstancin-Jeziorna
Town rights	1969
Government
• Mayor	Michał Wiśniewski (PO)
Area
• Total	17.1 km2 (6.6 sq mi)
Highest elevation	100 m (300 ft)
Lowest elevation	75 m (246 ft)
Population  (2011)
• Total	17,566
• Density	1,000/km2 (2,700/sq mi)
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
Postal code	05-510, 05-520
Area code	+48 22
Car plates	WPI
Website	www.konstancinjeziorna.pl

Konstancin-Jeziorna [kɔnˈstaɲt͡ɕin jɛˈʑɔrna] is a town in Piaseczno County, Masovian Voivodeship, Poland, with 17,566 inhabitants (as of March 2011, according to GUS). It is located about 20 km (12 mi) south of downtown Warsaw and is a part of the metropolitan area of that city.

The town was created in 1969 through combining neighbouring towns: holiday resort Skolimów-Konstancin and industrial Jeziorna with a number of villages.

The town, a 19th-century health spa, sits on the administrative border of the capital city, Warsaw. The town is known for its historic villas as well as newly built mansions, a shopping center in a restored 19th-century mill and is the home of the American School of Warsaw. Konstancin-Jeziorna also has a sports team which specializes in football/soccer named Kosa Konstancin created by former professional footballer Roman Kosecki.