Osowia postal code
Village · gostyniński county (powiat) · Szczawin Kościelny municipality (gmina) · mazowieckie voivodeship
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The postal code for Osowia is 09-550.
Postal code – Osowia
How to address a letter or parcel in Poland?
Jan Kowalski Osowia 15 09-550 Osowia
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 Osowia, so the second line contains the locality name and property number (e.g. Osowia 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 Osowia if it has no named streets?
Instead of a street, write the locality name and house number, e.g. “Osowia 15”. On the last line, write the postal code 09-550 and the locality or post office name.
What is the postal code for Osowia?
The postal code for Osowia is 09-550.
Which voivodeship and county is Osowia in?
Osowia (village) is in gostyniński county (powiat), Szczawin Kościelny municipality (gmina), mazowieckie voivodeship.
Which localities are closest to Osowia?
The closest localities to Osowia are: Tuliska (0.9 km), Kiełpieniec (1.1 km), Lubieniek (1.6 km), Mniszek (2.1 km), Mościska (2.2 km), Wola Trębska-Parcel (2.2 km). Distances are measured in a straight line between locality centres.
Localities near Osowia (gostyniński county)
Which county and municipality does Osowia belong to?
Osowia lies in Szczawin Kościelny municipality (gmina), in gostyniński county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.3651, 19.5330.
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