Osiek postal code
Village · myszkowski county (powiat) · Koziegłowy municipality (gmina) · śląskie voivodeship
- code
- 1
- streets
- 5
The postal code for Osiek is 42-350. The code covers 5 streets.
Postal code – Osiek
Streets A–Z (5)
How to address a letter or parcel in Poland?
Jan Kowalski ul. Krótka 1 42-350 Osiek
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 Osiek?
The postal code for Osiek is 42-350.
Which voivodeship and county is Osiek in?
Osiek (village) is in myszkowski county (powiat), Koziegłowy municipality (gmina), śląskie voivodeship.
Are there other localities named Osiek?
Yes – 20 localities share this name, including in these voivodeships: małopolskie, dolnośląskie, świętokrzyskie, pomorskie, kujawsko-pomorskie, opolskie, mazowieckie, łódzkie, wielkopolskie, lubuskie. Each has its own postal code.
Which localities are closest to Osiek?
The closest localities to Osiek are: Mysłów (1.3 km), Koclin (1.4 km), Gliniana Góra (1.9 km), Brzeziny (2 km), Pustkowie Lgockie (2.2 km), Rzeniszów-Łazy (2.6 km). Distances are measured in a straight line between locality centres.
Localities near Osiek (myszkowski county)
Which county and municipality does Osiek belong to?
Osiek lies in Koziegłowy municipality (gmina), in myszkowski county (powiat), śląskie voivodeship, Poland. Centre of the area based on address points: 50.5703, 19.2269.
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