Postal code
Osiedle Siejnik II, Olecko
Olecko, Olecko municipality (gmina), olecki county (powiat), warmińsko-mazurskie voivodeship
The postal code for Osiedle Siejnik II in Olecko is 19-400. Below you will find a map of the area, the post office and streets with the same code. This street has 27 buildings with a listed postal code; 40 other streets in this locality also use 19-400. The locality is in olecki county (powiat), warmińsko-mazurskie voivodeship.
| Code | Building numbers |
|---|---|
| 1, 1A, 1B, 1D, 1E, 2–16, 16B, 17–19, 19a, 20, 20C |
How to address a letter or parcel in Poland?
Jan Kowalski Osiedle Siejnik II 1 19-400 Olecko
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 Osiedle Siejnik II, Olecko?
The postal code for Osiedle Siejnik II (Olecko) is 19-400.
What determines the postal code for Osiedle Siejnik II?
Osiedle Siejnik II (Olecko) has one postal code (19-400), so the building number does not affect the code.
Which other streets use postal code 19-400?
Which postal codes are near 19-400?
Where is Osiedle Siejnik II, Olecko?
Osiedle Siejnik II, Olecko, lies in Olecko municipality (gmina), in olecki county (powiat), warmińsko-mazurskie voivodeship, Poland. Centre of the area based on address points: 54.0215, 22.4902.
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