Ostrowik postal code
Village · otwocki county (powiat) · Celestynów municipality (gmina) · mazowieckie voivodeship
- code
- 1
- streets
- 16
The postal code for Ostrowik is 05-430. The code covers 16 streets.
Postal code – Ostrowik
Streets A–Z (16)
How to address a letter or parcel in Poland?
Jan Kowalski ul. Andromedy 1 05-430 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.
Frequently asked questions
What is the postal code for Ostrowik?
The postal code for Ostrowik is 05-430.
Which voivodeship and county is Ostrowik in?
Ostrowik (village) is in otwocki county (powiat), Celestynów 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: Jatne (1.2 km), Ostrów (1.9 km), Dyzin (2.1 km), Siwianka (2.5 km), Bocian (2.7 km), Kruszówiec (3.1 km). Distances are measured in a straight line between locality centres.
Localities near Ostrowik (otwocki county)
Which county and municipality does Ostrowik belong to?
Ostrowik lies in Celestynów municipality (gmina), in otwocki county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.0904, 21.4142.
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