BazaKodow – postal codes in Poland

Postal code

ul. Mikołaja Trąby, Warszawa

Warszawa, Warszawa municipality (gmina), Warszawa county (powiat), mazowieckie voivodeship

The postal code for ul. Mikołaja Trąby in Warszawa is 03-146. Below you will find a map of the area, the post office and streets with the same code. This street has 24 buildings with a listed postal code. The locality is in Warszawa county (powiat), mazowieckie voivodeship.

Which postal code applies to each building number on ul. Mikołaja Trąby?
CodeBuilding numbers
2, 2A, 4, 6, 6A, 8–12, 12A, 13–17, 17A, 19, 21, 23, 23A, 25, 27, 33B
ul. Mikołaja Trąby, WarszawaOpen in OSM ↗

How to address a letter or parcel in Poland?

Jan Kowalski
ul. Mikołaja Trąby 2
03-146 Warszawa

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. Mikołaja Trąby, Warszawa?

The postal code for ul. Mikołaja Trąby (Warszawa) is 03-146.

What determines the postal code for ul. Mikołaja Trąby?

ul. Mikołaja Trąby (Warszawa) has one postal code (03-146), so the building number does not affect the code.

Which post office serves this address?

The main post office in this locality is UP Warszawa 1, ul. Świętokrzyska 31/33. Mail may also be delivered by another, closer branch — check the post office map.

Which postal codes are near 03-146?

Where is ul. Mikołaja Trąby, Warszawa?

ul. Mikołaja Trąby, Warszawa, lies in Warszawa municipality (gmina), in Warszawa county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.3439, 20.9411.

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