Postal code 75-900 – Koszalin
Koszalin, Koszalin municipality, Koszalin county, zachodniopomorskie voivodeship
- localities
- 3
- streets
- 105
- buildings
- 1,205
Postal code 75-900 is used in 3 localities, including Koszalin, Strzałków, Bonin (Koszalin municipality, Koszalin county, zachodniopomorskie voivodeship). It covers 1205 buildings on 105 streets – the full list with house numbers is below.
Which streets have postal code 75-900?
Which localities have postal code 75-900?
How to address a letter or parcel in Poland?
Jan Kowalski ul. Agrestowa 1 75-900 Koszalin
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 75-900 cover?
Postal code 75-900 covers 3 localities: Koszalin, Strzałków, Bonin, including streets: Agrestowa, Arniki, Astrów, Błękitna, Boczniaków (Koszalin county, zachodniopomorskie voivodeship).
Where is postal code 75-900?
In zachodniopomorskie voivodeship, Koszalin county, Poland.
Is postal code 75-900 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 municipality and county does 75-900 belong to?
The 75-900 area (Koszalin) lies in Koszalin municipality (gmina), in Koszalin county (powiat), zachodniopomorskie voivodeship, Poland. Centre of the area based on address points: 54.1571, 16.2151.
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

