Gassy postal code
Village · piaseczyński county (powiat) · Konstancin-Jeziorna municipality (gmina) · mazowieckie voivodeship
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The postal code for Gassy is 05-520. The code covers 1 street.
Postal code – Gassy
Streets A–Z (1)
How to address a letter or parcel in Poland?
Jan Kowalski ul. Gwiezdnych Wojen 1 05-520 Gassy
Write the postal code in the 00-000 format on the last line, before the town name. Put the recipient's full name on the first line and the street with building and flat number on the second. For mail from abroad, add POLAND as the final line.
Frequently asked questions
What is the postal code for Gassy?
The postal code for Gassy is 05-520.
Which voivodeship and county is Gassy in?
Gassy (village) is in piaseczyński county (powiat), Konstancin-Jeziorna municipality (gmina), mazowieckie voivodeship.
Which localities are closest to Gassy?
The closest localities to Gassy are: Czernidła (1 km), Piaski (1.9 km), Łęg (1.9 km), Cieciszew (2.9 km), Nadbrzeż (3.1 km), Habdzin (3.1 km). Distances are measured in a straight line between locality centres.
Localities near Gassy (piaseczyński county)
Which county and municipality does Gassy belong to?
Gassy lies in Konstancin-Jeziorna municipality (gmina), in piaseczyński county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.0800, 21.2004.
Where does this data come from?
Localities and postal codes come from the public TERYT registers (Statistics Poland), while streets, building numbers and locations come from the National Register of Boundaries (GUGiK). Data as of 12.11.2026. This site is not affiliated with Poczta Polska; for important shipments, confirm the code at a post office. More about sources