Sanniki postal code
Town · gostyniński county (powiat) · Sanniki municipality (gmina) · mazowieckie voivodeship
- code
- 1
- streets
- 25
The postal code for Sanniki is 09-540. The code covers 25 streets.
Postal code – Sanniki
Streets A–Z (25)
How to address a letter or parcel in Poland?
Jan Kowalski ul. Bankowa 1 09-540 Sanniki
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 is the postal code for Sanniki?
The postal code for Sanniki is 09-540.
Which voivodeship and county is Sanniki in?
Sanniki (town) is in gostyniński county (powiat), Sanniki municipality (gmina), mazowieckie voivodeship.
Are there other localities named Sanniki?
Yes – 3 localities share this name, including in these voivodeships: podlaskie, wielkopolskie. Each has its own postal code.
Which localities are closest to Sanniki?
The closest localities to Sanniki are: Mocarzewo (1.8 km), Mocarzewo (1.8 km), Szkarada (2.3 km), Aleksandrów (2.6 km), Wólka Wysoka (2.8 km), Wólka Niska (3.1 km). Distances are measured in a straight line between locality centres.
Localities near Sanniki (gostyniński county)
Which county and municipality does Sanniki belong to?
Sanniki lies in Sanniki municipality (gmina), in gostyniński county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.3328, 19.8665.
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