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Zosin postal code

Village · łomżyński county (powiat) · Łomża municipality (gmina) · podlaskie voivodeship

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Zosin:
code
1
streets
12

The postal code for Zosin is 18-400. The code covers 12 streets.

Postal code – Zosin

Streets A–Z (12)

How to address a letter or parcel in Poland?

Jan Kowalski
ul. Bartnicza 1
18-400 Zosin

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 Zosin?

The postal code for Zosin is 18-400.

Which voivodeship and county is Zosin in?

Zosin (village) is in łomżyński county (powiat), Łomża municipality (gmina), podlaskie voivodeship.

Are there other localities named Zosin?

Yes – 13 localities share this name, including in these voivodeships: lubelskie, łódzkie, wielkopolskie, mazowieckie, kujawsko-pomorskie. Each has its own postal code.

Which localities are closest to Zosin?

The closest localities to Zosin are: Stara Łomża przy Szosie (1.4 km), Stara Łomża nad Rzeką (2.3 km), Siemień Nadrzeczny (2.6 km), Siemień-Rowy (3.2 km), Podgórze (3.5 km), Kalinowo (3.5 km). Distances are measured in a straight line between locality centres.

Localities near Zosin (łomżyński county)

Which county and municipality does Zosin belong to?

Zosin lies in Łomża municipality (gmina), in łomżyński county (powiat), podlaskie voivodeship, Poland. Centre of the area based on address points: 53.1421, 22.1226.

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