Kostrzyn postal code
Village · białobrzeski county (powiat) · Wyśmierzyce municipality (gmina) · mazowieckie voivodeship
- code
- 1
- streets
- 12
The postal code for Kostrzyn is 26-811. The code covers 12 streets.
Postal code – Kostrzyn
Streets A–Z (12)
How to address a letter or parcel in Poland?
Jan Kowalski ul. Akacjowa 1 26-811 Kostrzyn
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 Kostrzyn?
The postal code for Kostrzyn is 26-811.
Which voivodeship and county is Kostrzyn in?
Kostrzyn (village) is in białobrzeski county (powiat), Wyśmierzyce municipality (gmina), mazowieckie voivodeship.
Are there other localities named Kostrzyn?
Yes – 2 localities share this name, including in these voivodeships: wielkopolskie. Each has its own postal code.
Which localities are closest to Kostrzyn?
The closest localities to Kostrzyn are: Kozłów (1.4 km), Jabłonna (2.5 km), Kiedrzyn (2.7 km), Olszowa (2.7 km), Ulów (3.4 km), Żydy (3.5 km). Distances are measured in a straight line between locality centres.
Localities near Kostrzyn (białobrzeski county)
Which county and municipality does Kostrzyn belong to?
Kostrzyn lies in Wyśmierzyce municipality (gmina), in białobrzeski county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 51.5750, 20.7329.
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