Mierzyn postal code
Village · nowomiejski county (powiat) · Biskupiec municipality (gmina) · warmińsko-mazurskie voivodeship
- codes
- 2
Mierzyn has 2 postal codes: 13-334, 13-340. The correct code depends on the street.
All postal codes (2) – Mierzyn
How to address a letter or parcel in Poland?
Jan Kowalski Mierzyn 15 13-334 Mierzyn
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 Mierzyn, so the second line contains the locality name and property number (e.g. Mierzyn 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 Mierzyn if it has no named streets?
Instead of a street, write the locality name and house number, e.g. “Mierzyn 15”. On the last line, write the postal code 13-334 and the locality or post office name.
Why does Mierzyn have several postal codes?
In larger localities, postal codes are assigned to streets and, on long streets, to building number ranges. Mierzyn has 2 postal codes – find the right one in the street directory.
What is the postal code for Mierzyn?
Mierzyn has 2 postal codes: 13-334, 13-340. The correct code depends on the street.
Which voivodeship and county is Mierzyn in?
Mierzyn (village) is in nowomiejski county (powiat), Biskupiec municipality (gmina), warmińsko-mazurskie voivodeship.
Are there other localities named Mierzyn?
Yes – 7 localities share this name, including in these voivodeships: zachodniopomorskie, świętokrzyskie, wielkopolskie, łódzkie. Each has its own postal code.
Which localities are closest to Mierzyn?
The closest localities to Mierzyn are: Sumin (1.7 km), Rywałdzik (2.2 km), Osówko (3.1 km), Babalice (3.1 km), Wardęgowo (3.2 km), Płowęż (3.5 km). Distances are measured in a straight line between locality centres.
Localities near Mierzyn (nowomiejski county)
Which county and municipality does Mierzyn belong to?
Mierzyn lies in Biskupiec municipality (gmina), in nowomiejski county (powiat), warmińsko-mazurskie voivodeship, Poland. Centre of the area based on address points: 53.4649, 19.2573.
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

