Kościuszków postal code
Village · radomski county (powiat) · Pionki municipality (gmina) · mazowieckie voivodeship
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The postal code for Kościuszków is 26-670.
Postal code – Kościuszków
How to address a letter or parcel in Poland?
Jan Kowalski Kościuszków 15 26-670 Kościuszków
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. There are no named streets in Kościuszków, so the second line contains the locality name and property number (e.g. Kościuszków 15). If the serving post office is in another locality, its name can appear next to the code on the last line.
Frequently asked questions
How do I address a letter to Kościuszków if it has no named streets?
Instead of a street, write the locality name and house number, e.g. “Kościuszków 15”. On the last line, write the postal code 26-670 and the locality or post office name.
What is the postal code for Kościuszków?
The postal code for Kościuszków is 26-670.
Which voivodeship and county is Kościuszków in?
Kościuszków (village) is in radomski county (powiat), Pionki municipality (gmina), mazowieckie voivodeship.
Are there other localities named Kościuszków?
Yes – 3 localities share this name, including in these voivodeships: mazowieckie, wielkopolskie. Each has its own postal code.
Which localities are closest to Kościuszków?
The closest localities to Kościuszków are: Tadeuszów (1 km), Marcelów (1 km), Sokoły (1.8 km), Czarna Wieś (1.8 km), Maryno (2 km), Adolfin (2.1 km). Distances are measured in a straight line between locality centres.
Localities near Kościuszków (radomski county)
Which county and municipality does Kościuszków belong to?
Kościuszków lies in Pionki municipality (gmina), in radomski county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 51.4415, 21.4154.
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