Ostrowik postal code
Village · wołomiński county (powiat) · Poświętne municipality (gmina) · mazowieckie voivodeship
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The postal code for Ostrowik is 05-079.
Postal code – Ostrowik
How to address a letter or parcel in Poland?
Jan Kowalski Ostrowik 15 05-079 Ostrowik
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 Ostrowik, so the second line contains the locality name and property number (e.g. Ostrowik 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 Ostrowik if it has no named streets?
Instead of a street, write the locality name and house number, e.g. “Ostrowik 15”. On the last line, write the postal code 05-079 and the locality or post office name.
What is the postal code for Ostrowik?
The postal code for Ostrowik is 05-079.
Which voivodeship and county is Ostrowik in?
Ostrowik (village) is in wołomiński county (powiat), Poświętne municipality (gmina), mazowieckie voivodeship.
Are there other localities named Ostrowik?
Yes – 3 localities share this name, including in these voivodeships: mazowieckie, podlaskie. Each has its own postal code.
Which localities are closest to Ostrowik?
The closest localities to Ostrowik are: Zabraniec (1.7 km), Cięciwa (1.9 km), Trzcinka (2.7 km), Majdan (2.9 km), Leśniakowizna (3 km), Małków (3.2 km). Distances are measured in a straight line between locality centres.
Localities near Ostrowik (wołomiński county)
Which county and municipality does Ostrowik belong to?
Ostrowik lies in Poświętne municipality (gmina), in wołomiński county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.3021, 21.3105.
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