BazaKodow – postal codes in Poland

Postal code

ul. Danuty Siedzikówny, Sieroszewice

Sieroszewice, Sieroszewice municipality (gmina), ostrowski county (powiat), wielkopolskie voivodeship

The postal code for ul. Danuty Siedzikówny in Sieroszewice is 63-405. Below you will find a map of the area, the post office and streets with the same code. This street has 13 buildings with a listed postal code; 23 other streets in this locality also use 63-405. The locality is in ostrowski county (powiat), wielkopolskie voivodeship.

Which postal code applies to each building number on ul. Danuty Siedzikówny?
CodeBuilding numbers
1–12, 14
ul. Danuty Siedzikówny, SieroszewiceOpen in OSM ↗

How to address a letter or parcel in Poland?

Jan Kowalski
ul. Danuty Siedzikówny 1
63-405 Sieroszewice

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. Danuty Siedzikówny, Sieroszewice?

The postal code for ul. Danuty Siedzikówny (Sieroszewice) is 63-405.

What determines the postal code for ul. Danuty Siedzikówny?

ul. Danuty Siedzikówny (Sieroszewice) has one postal code (63-405), so the building number does not affect the code.

Which other streets use postal code 63-405?

Where else can you find ul. Danuty Siedzikówny?

All localities with ul. Danuty Siedzikówny →

Where is ul. Danuty Siedzikówny, Sieroszewice?

ul. Danuty Siedzikówny, Sieroszewice, lies in Sieroszewice municipality (gmina), in ostrowski county (powiat), wielkopolskie voivodeship, Poland. Centre of the area based on address points: 51.6371, 17.9604.

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