Piaseczno Population 2026
Piaseczno has a population of 36,278, making it the #140 biggest city in 🇵🇱 Poland, located in Mazovia. Roughly 0.1% of Poland's population lives here. It is about 47× smaller than Warsaw, the country's biggest city.
Population (city proper)
36,278
Rank in Poland
#140
Coordinates
52.08°N, 21.02°E
~108 m elevation · Europe/Warsaw
Distance to capital (Warsaw)
17 km
11 miles, straight line
Other big cities in Mazovia
Cities near Piaseczno
FAQ
What is the population of Piaseczno?
Piaseczno has a population of 36,278 (city proper, latest official figure via GeoNames), making it the #140 biggest city in Poland.
What region is Piaseczno in?
Piaseczno is located in Mazovia, Poland.
Is Piaseczno the capital of Poland?
No, the capital of Poland is Warsaw, about 17 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.