BazaKodow – postal codes in Poland

Postal code

Osiedle Konstytucji 3 Maja, Kościan

Kościan, Kościan municipality (gmina), kościański county (powiat), wielkopolskie voivodeship

The postal code for Osiedle Konstytucji 3 Maja in Kościan is 64-000. Below you will find a map of the area, the post office and streets with the same code. This street has 94 buildings with a listed postal code; 40 other streets in this locality also use 64-000. The locality is in kościański county (powiat), wielkopolskie voivodeship.

Which postal code applies to each building number on Osiedle Konstytucji 3 Maja?
CodeBuilding numbers
1A, 1B, 1C, 2, 2A, 2B, 2C, 3, 3A, 4–13, 13A, 14–29, 29A, 30–48, 48A, 48B, 48C, 48D, 49–68, 75–84, 84A, 85–87

How to address a letter or parcel in Poland?

Jan Kowalski
Osiedle Konstytucji 3 Maja 1A
64-000 Kościan

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 Osiedle Konstytucji 3 Maja, Kościan?

The postal code for Osiedle Konstytucji 3 Maja (Kościan) is 64-000.

What determines the postal code for Osiedle Konstytucji 3 Maja?

Osiedle Konstytucji 3 Maja (Kościan) has one postal code (64-000), so the building number does not affect the code.

Which other streets use postal code 64-000?

Where else can you find Osiedle Konstytucji 3 Maja?

All localities with Osiedle Konstytucji 3 Maja →

Where is Osiedle Konstytucji 3 Maja, Kościan?

Osiedle Konstytucji 3 Maja, Kościan, lies in Kościan municipality (gmina), in kościański county (powiat), wielkopolskie voivodeship, Poland. Centre of the area based on address points: 52.0942, 16.6596.

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