Postal code 86-031 – Osielsko
Osielsko, Osielsko municipality, bydgoski county, kujawsko-pomorskie voivodeship
- localities
- 9
- streets
- 272
- buildings
- 3,519
Postal code 86-031 is used in 9 localities, including Osielsko, Żołędowo, Niwy, Jarużyn, Myślęcinek (Osielsko municipality, bydgoski county, kujawsko-pomorskie voivodeship). It covers 3519 buildings on 272 streets – the full list with house numbers is below.
Which streets have postal code 86-031?
Which localities have postal code 86-031?
How to address a letter or parcel in Poland?
Jan Kowalski ul. Agatowa 1 86-031 Osielsko
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 86-031 cover?
Postal code 86-031 covers 9 localities: Osielsko, Żołędowo, Niwy, Jarużyn, Myślęcinek, Wilcze, Jagodowo, Czarnówczyn, Strzelce Leśne, including streets: Agatowa, Agrestowa, Akacjowa, Adama Mickiewicza, Ametystowa (bydgoski county, kujawsko-pomorskie voivodeship).
Where is postal code 86-031?
In kujawsko-pomorskie voivodeship, bydgoski county, Poland.
Is postal code 86-031 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 86-031?
Which municipality and county does 86-031 belong to?
The 86-031 area (Osielsko) lies in Osielsko municipality (gmina), in bydgoski county (powiat), kujawsko-pomorskie voivodeship, Poland. Centre of the area based on address points: 53.1989, 18.0699.
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

