Olsztyn postal code
Town · częstochowski county (powiat) · Olsztyn municipality (gmina) · śląskie voivodeship
- code
- 1
- streets
- 74
The postal code for Olsztyn is 42-256. The code covers 74 streets.
Postal code – Olsztyn
Streets A–Z (74)
How to address a letter or parcel in Poland?
Jan Kowalski ul. 3 Maja 1 42-256 Olsztyn
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 Olsztyn?
The postal code for Olsztyn is 42-256.
Which voivodeship and county is Olsztyn in?
Olsztyn (town) is in częstochowski county (powiat), Olsztyn municipality (gmina), śląskie voivodeship.
Are there other localities named Olsztyn?
Yes – 2 localities share this name, including in these voivodeships: warmińsko-mazurskie. Each has its own postal code.
Which localities are closest to Olsztyn?
The closest localities to Olsztyn are: Skrajnica (1.8 km), Kusięta (2.4 km), Przymiłowice (3.7 km), Turów (4.8 km), Brzyszów (5.1 km), Srocko (5.1 km). Distances are measured in a straight line between locality centres.
Localities near Olsztyn (częstochowski county)
Which county and municipality does Olsztyn belong to?
Olsztyn lies in Olsztyn municipality (gmina), in częstochowski county (powiat), śląskie voivodeship, Poland. Centre of the area based on address points: 50.7515, 19.2600.
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