Postal code 09-321 – Sławęcin
Sławęcin, Bieżuń municipality, żuromiński county, mazowieckie voivodeship
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Postal code 09-321 is used in Sławęcin (Bieżuń municipality, żuromiński county, mazowieckie voivodeship). It covers the whole locality, with no split by street.
How to address a letter or parcel in Poland?
Jan Kowalski Sławęcin 15 09-321 Sławęcin
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 address does postal code 09-321 cover?
Postal code 09-321 covers Sławęcin (żuromiński county, mazowieckie voivodeship).
Where is postal code 09-321?
In mazowieckie voivodeship, żuromiński county, Poland.
Is postal code 09-321 enough to send a parcel?
No – always write the postal code together with the town or post office name and the full address (street and building number, or the village name with the house number).
Which postal codes are next to 09-321?
Which municipality and county does 09-321 belong to?
The 09-321 area (Sławęcin) lies in Bieżuń municipality (gmina), in żuromiński county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.9642, 20.0020.
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