Kostkowice postal code
Village · cieszyński county (powiat) · Dębowiec municipality (gmina) · śląskie voivodeship
- code
- 1
- streets
- 10
The postal code for Kostkowice is 43-426. The code covers 10 streets.
Postal code – Kostkowice
Streets A–Z (10)
How to address a letter or parcel in Poland?
Jan Kowalski ul. Chodniki 1 43-426 Kostkowice
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 Kostkowice?
The postal code for Kostkowice is 43-426.
Which voivodeship and county is Kostkowice in?
Kostkowice (village) is in cieszyński county (powiat), Dębowiec municipality (gmina), śląskie voivodeship.
Are there other localities named Kostkowice?
Yes – 2 localities share this name, including in these voivodeships: śląskie. Each has its own postal code.
Which localities are closest to Kostkowice?
The closest localities to Kostkowice are: Gumna (2.3 km), Dębowiec (2.7 km), Łączka (2.7 km), Iskrzyczyn (2.7 km), Ogrodzona (2.9 km), Zamarski (3.3 km). Distances are measured in a straight line between locality centres.
Localities near Kostkowice (cieszyński county)
Which county and municipality does Kostkowice belong to?
Kostkowice lies in Dębowiec municipality (gmina), in cieszyński county (powiat), śląskie voivodeship, Poland. Centre of the area based on address points: 49.7923, 18.7066.
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