Olsza postal code
Village · śremski county (powiat) · Śrem municipality (gmina) · wielkopolskie voivodeship
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The postal code for Olsza is 63-100.
Postal code – Olsza
How to address a letter or parcel in Poland?
Jan Kowalski Olsza 15 63-100 Olsza
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 Olsza, so the second line contains the locality name and property number (e.g. Olsza 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 Olsza if it has no named streets?
Instead of a street, write the locality name and house number, e.g. “Olsza 15”. On the last line, write the postal code 63-100 and the locality or post office name.
What is the postal code for Olsza?
The postal code for Olsza is 63-100.
Which voivodeship and county is Olsza in?
Olsza (village) is in śremski county (powiat), Śrem municipality (gmina), wielkopolskie voivodeship.
Are there other localities named Olsza?
Yes – 5 localities share this name, including in these voivodeships: dolnośląskie, kujawsko-pomorskie, łódzkie, podlaskie. Each has its own postal code.
Which localities are closest to Olsza?
The closest localities to Olsza are: Bystrzek (1.1 km), Binkowo (2.1 km), Chrząstowo (2.3 km), Sosnowiec (2.4 km), Łęg (2.6 km), Łężek (2.8 km). Distances are measured in a straight line between locality centres.
Localities near Olsza (śremski county)
Which county and municipality does Olsza belong to?
Olsza lies in Śrem municipality (gmina), in śremski county (powiat), wielkopolskie voivodeship, Poland. Centre of the area based on address points: 52.0768, 17.0973.
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