Lasek postal code
Village · gostyniński county (powiat) · Sanniki municipality (gmina) · mazowieckie voivodeship
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The postal code for Lasek is 09-540.
Postal code – Lasek
How to address a letter or parcel in Poland?
Jan Kowalski Lasek 15 09-540 Lasek
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. There are no named streets in Lasek, so the second line contains the locality name and property number (e.g. Lasek 15). If the serving post office is in another locality, its name can appear next to the code on the last line.
Frequently asked questions
How do I address a letter to Lasek if it has no named streets?
Instead of a street, write the locality name and house number, e.g. “Lasek 15”. On the last line, write the postal code 09-540 and the locality or post office name.
What is the postal code for Lasek?
The postal code for Lasek is 09-540.
Which voivodeship and county is Lasek in?
Lasek (village) is in gostyniński county (powiat), Sanniki municipality (gmina), mazowieckie voivodeship.
Are there other localities named Lasek?
Yes – 12 localities share this name, including in these voivodeships: mazowieckie, małopolskie, pomorskie, świętokrzyskie, kujawsko-pomorskie, łódzkie, lubuskie, dolnośląskie, lubelskie. Each has its own postal code.
Which localities are closest to Lasek?
The closest localities to Lasek are: Brzezia (1.2 km), Brzeziny (1.7 km), Aleksandrów (1.8 km), Potok Biały (2.2 km), Paulinka (2.2 km), Sielce (2.6 km). Distances are measured in a straight line between locality centres.
Localities near Lasek (gostyniński county)
Which county and municipality does Lasek belong to?
Lasek lies in Sanniki municipality (gmina), in gostyniński county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.3175, 19.9375.
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