Postal code
ul. Słowiczyńska, Siemiatycze
Siemiatycze, Siemiatycze municipality (gmina), siemiatycki county (powiat), podlaskie voivodeship
The postal code for ul. Słowiczyńska in Siemiatycze is 17-300. Below you will find a map of the area, the post office and streets with the same code. This street has 107 buildings with a listed postal code; 40 other streets in this locality also use 17-300. The locality is in siemiatycki county (powiat), podlaskie voivodeship.
| Code | Building numbers |
|---|---|
| 1–29, 29A, 30–39, 41–43, 43A, 44–49, 49a, 49b, 50–54, 56–85, 87, 89, 92–97, 97A, 100, 104, 106, 108, 112, 114, 122, 126, 126A, 128, 128a |
How to address a letter or parcel in Poland?
Jan Kowalski ul. Słowiczyńska 1 17-300 Siemiatycze
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 ul. Słowiczyńska, Siemiatycze?
The postal code for ul. Słowiczyńska (Siemiatycze) is 17-300.
What determines the postal code for ul. Słowiczyńska?
ul. Słowiczyńska (Siemiatycze) has one postal code (17-300), so the building number does not affect the code.
Which other streets use postal code 17-300?
Where is ul. Słowiczyńska, Siemiatycze?
ul. Słowiczyńska, Siemiatycze, lies in Siemiatycze municipality (gmina), in siemiatycki county (powiat), podlaskie voivodeship, Poland. Centre of the area based on address points: 52.4338, 22.8756.
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