Gunie-Ostrów postal code
Village · zambrowski county (powiat) · Kołaki Kościelne municipality (gmina) · podlaskie voivodeship
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The postal code for Gunie-Ostrów is 18-315.
Postal code – Gunie-Ostrów
How to address a letter or parcel in Poland?
Jan Kowalski Gunie-Ostrów 15 18-315 Gunie-Ostrów
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 Gunie-Ostrów, so the second line contains the locality name and property number (e.g. Gunie-Ostrów 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 Gunie-Ostrów if it has no named streets?
Instead of a street, write the locality name and house number, e.g. “Gunie-Ostrów 15”. On the last line, write the postal code 18-315 and the locality or post office name.
What is the postal code for Gunie-Ostrów?
The postal code for Gunie-Ostrów is 18-315.
Which voivodeship and county is Gunie-Ostrów in?
Gunie-Ostrów (village) is in zambrowski county (powiat), Kołaki Kościelne municipality (gmina), podlaskie voivodeship.
Which localities are closest to Gunie-Ostrów?
The closest localities to Gunie-Ostrów are: Kołaki Kościelne (1.5 km), Sanie-Dąb (2 km), Gołasze-Dąb (2.3 km), Czachy-Kołaki (2.6 km), Czarnowo-Undy (2.9 km), Czosaki-Dąb (3 km). Distances are measured in a straight line between locality centres.
Localities near Gunie-Ostrów (zambrowski county)
Which county and municipality does Gunie-Ostrów belong to?
Gunie-Ostrów lies in Kołaki Kościelne municipality (gmina), in zambrowski county (powiat), podlaskie voivodeship, Poland. Centre of the area based on address points: 53.0111, 22.3910.
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