Postal code
ul. Marii Konopnickiej, Ciechanów
Ciechanów, Ciechanów municipality (gmina), ciechanowski county (powiat), mazowieckie voivodeship
The postal code for ul. Marii Konopnickiej in Ciechanów is 06-400. Below you will find a map of the area, the post office and streets with the same code. This street has 51 buildings with a listed postal code; 40 other streets in this locality also use 06-400. The locality is in ciechanowski county (powiat), mazowieckie voivodeship.
| Code | Building numbers |
|---|---|
| 4–6, 6A, 6B, 7, 9–13, 15, 17–24, 26, 28–44, 46–48, 48A, 49–53, 55, 57, 59, 61 |
How to address a letter or parcel in Poland?
Jan Kowalski ul. Marii Konopnickiej 4 06-400 Ciechanów
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. Marii Konopnickiej, Ciechanów?
The postal code for ul. Marii Konopnickiej (Ciechanów) is 06-400.
What determines the postal code for ul. Marii Konopnickiej?
ul. Marii Konopnickiej (Ciechanów) has one postal code (06-400), so the building number does not affect the code.
Which other streets use postal code 06-400?
Where else can you find ul. Marii Konopnickiej?
Which postal codes are near 06-400?
Where is ul. Marii Konopnickiej, Ciechanów?
ul. Marii Konopnickiej, Ciechanów, lies in Ciechanów municipality (gmina), in ciechanowski county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.8903, 20.6094.
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