Postal code 16-500 – Sejny
Sejny, Sejny municipality, sejneński county, podlaskie voivodeship
- localities
- 53
- streets
- 48
- buildings
- 922
Postal code 16-500 is used in 53 localities, including Sejny, Krejwińce, Łumbie, Maćkowa Ruda, Michnowce (Sejny municipality, sejneński county, podlaskie voivodeship). It covers 922 buildings on 48 streets – the full list with house numbers is below.
Which streets have postal code 16-500?
Which localities have postal code 16-500?
How to address a letter or parcel in Poland?
Jan Kowalski ul. 1 Maja 1 16-500 Sejny
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 address does postal code 16-500 cover?
Postal code 16-500 covers 53 localities: Sejny, Krejwińce, Łumbie, Maćkowa Ruda, Michnowce, Posejanka, Romanowce, Sumowo, Babańce, Berżałowce and more, including streets: 1 Maja, 11 Listopada, Adama Mickiewicza, Akacjowa, Brzozowa (sejneński county, podlaskie voivodeship).
Where is postal code 16-500?
In podlaskie voivodeship, sejneński county, Poland.
Is postal code 16-500 enough to send a parcel?
No – always write the postal code together with the town or post office name and the full address (street and building number, or the village name with the house number).
Which postal codes are next to 16-500?
Which municipality and county does 16-500 belong to?
The 16-500 area (Sejny) lies in Sejny municipality (gmina), in sejneński county (powiat), podlaskie voivodeship, Poland. Centre of the area based on address points: 54.1018, 23.3501.
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

