Osówka postal code
Village · lipski county (powiat) · Sienno municipality (gmina) · mazowieckie voivodeship
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The postal code for Osówka is 27-350.
Postal code – Osówka
How to address a letter or parcel in Poland?
Jan Kowalski Osówka 15 27-350 Osówka
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 Osówka, so the second line contains the locality name and property number (e.g. Osówka 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 Osówka if it has no named streets?
Instead of a street, write the locality name and house number, e.g. “Osówka 15”. On the last line, write the postal code 27-350 and the locality or post office name.
What is the postal code for Osówka?
The postal code for Osówka is 27-350.
Which voivodeship and county is Osówka in?
Osówka (village) is in lipski county (powiat), Sienno municipality (gmina), mazowieckie voivodeship.
Are there other localities named Osówka?
Yes – 9 localities share this name, including in these voivodeships: mazowieckie, kujawsko-pomorskie, lubelskie, podlaskie, świętokrzyskie, wielkopolskie. Each has its own postal code.
Which localities are closest to Osówka?
The closest localities to Osówka are: Hieronimów (1.5 km), Aleksandrów Duży (1.9 km), Wygoda (2.3 km), Piasków (2.5 km), Nowa Wieś (2.9 km), Zapusta (3.3 km). Distances are measured in a straight line between locality centres.
Localities near Osówka (lipski county)
Which county and municipality does Osówka belong to?
Osówka lies in Sienno municipality (gmina), in lipski county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 51.0753, 21.5624.
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