Postal code
św. Krzysztofa, Ciechanów
Ciechanów, Ciechanów municipality (gmina), ciechanowski county (powiat), mazowieckie voivodeship
św. Krzysztofa in Ciechanów has 2 postal codes: 06-400, 06-413. The correct code depends on the building number — check the table below. This street has 6 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 |
|---|---|
| 2, 4, 8, 17 | |
| 1, 3 |
How to address a letter or parcel in Poland?
Jan Kowalski św. Krzysztofa 2 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. The postal code on this street depends on the building number. Before posting, make sure it matches the number in the table.
Frequently asked questions
What is the postal code for św. Krzysztofa, Ciechanów?
św. Krzysztofa (Ciechanów) has 2 postal codes: 06-400, 06-413.
What determines the postal code for św. Krzysztofa?
On longer streets, Polish Post assigns different postal codes to ranges of building numbers, often separately for even and odd numbers. The code for św. Krzysztofa therefore depends on the building number — see the ranges in the table above.
Which other streets use postal code 06-400?
Where else can you find św. Krzysztofa?
Which postal codes are near 06-400?
Where is św. Krzysztofa, Ciechanów?
św. Krzysztofa, Ciechanów, lies in Ciechanów municipality (gmina), in ciechanowski county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.8748, 20.6366.
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