Postal code 78-451 – Iwin
Iwin, Grzmiąca municipality, szczecinecki county, zachodniopomorskie voivodeship
- localities
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Postal code 78-451 is used in 3 localities, including Iwin, Przeradz, Radomyśl (Grzmiąca municipality, szczecinecki county, zachodniopomorskie voivodeship). It covers the whole locality, with no split by street.
Which localities have postal code 78-451?
How to address a letter or parcel in Poland?
Jan Kowalski Iwin 15 78-451 Iwin
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 78-451 cover?
Postal code 78-451 covers 3 localities: Iwin, Przeradz, Radomyśl (szczecinecki county, zachodniopomorskie voivodeship).
Where is postal code 78-451?
In zachodniopomorskie voivodeship, szczecinecki county, Poland.
Is postal code 78-451 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 78-451?
Which municipality and county does 78-451 belong to?
The 78-451 area (Iwin) lies in Grzmiąca municipality (gmina), in szczecinecki county (powiat), zachodniopomorskie voivodeship, Poland. Centre of the area based on address points: 53.7966, 16.5195.
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