Olszewo postal code
Village · siemiatycki county (powiat) · Perlejewo municipality (gmina) · podlaskie voivodeship
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The postal code for Olszewo is 17-322.
Postal code – Olszewo
How to address a letter or parcel in Poland?
Jan Kowalski Olszewo 15 17-322 Olszewo
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 Olszewo, so the second line contains the locality name and property number (e.g. Olszewo 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 Olszewo if it has no named streets?
Instead of a street, write the locality name and house number, e.g. “Olszewo 15”. On the last line, write the postal code 17-322 and the locality or post office name.
What is the postal code for Olszewo?
The postal code for Olszewo is 17-322.
Which voivodeship and county is Olszewo in?
Olszewo (village) is in siemiatycki county (powiat), Perlejewo municipality (gmina), podlaskie voivodeship.
Are there other localities named Olszewo?
Yes – 13 localities share this name, including in these voivodeships: mazowieckie, warmińsko-mazurskie, podlaskie, wielkopolskie, łódzkie. Each has its own postal code.
Which localities are closest to Olszewo?
The closest localities to Olszewo are: Żale (0.9 km), Twarogi-Wypychy (1.1 km), Twarogi-Mazury (1.4 km), Bogusze Stare (1.6 km), Bogusze-Litewka (2.4 km), Żery-Pilaki (2.4 km). Distances are measured in a straight line between locality centres.
Localities near Olszewo (siemiatycki county)
Which county and municipality does Olszewo belong to?
Olszewo lies in Perlejewo municipality (gmina), in siemiatycki county (powiat), podlaskie voivodeship, Poland. Centre of the area based on address points: 52.5744, 22.6498.
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