Postal code
ul. Jana Kazimierza, Świerklany
Świerklany, Świerklany municipality (gmina), rybnicki county (powiat), śląskie voivodeship
ul. Jana Kazimierza in Świerklany has 2 postal codes: 42-266, 44-266. The correct code depends on the building number — check the table below. This street has 20 buildings with a listed postal code; 25 other streets in this locality also use 42-266. The locality is in rybnicki county (powiat), śląskie voivodeship.
| Code | Building numbers |
|---|---|
| 17A, 23B | |
| 1, 2A, 4A, 8, 10–14, 14B, 15–18, 20, 23, 23A, 25B |
How to address a letter or parcel in Poland?
Jan Kowalski ul. Jana Kazimierza 17A 42-266 Świerklany
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. The postal code on this street depends on the building number. Before posting, make sure it matches the number in the table.
Frequently asked questions
What is the postal code for ul. Jana Kazimierza, Świerklany?
ul. Jana Kazimierza (Świerklany) has 2 postal codes: 42-266, 44-266.
What determines the postal code for ul. Jana Kazimierza?
On longer streets, Polish Post assigns different postal codes to ranges of building numbers, often separately for even and odd numbers. The code for ul. Jana Kazimierza therefore depends on the building number — see the ranges in the table above.
Which other streets use postal code 42-266?
Where else can you find ul. Jana Kazimierza?
Which postal codes are near 42-266?
Where is ul. Jana Kazimierza, Świerklany?
ul. Jana Kazimierza, Świerklany, lies in Świerklany municipality (gmina), in rybnicki county (powiat), śląskie voivodeship, Poland. Centre of the area based on address points: 50.0156, 18.5832.
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