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Postal code 06-440 – Gąsocin

Gąsocin, Sońsk municipality, ciechanowski county, mazowieckie voivodeship

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Code 06-440:
localities
17
streets
43
buildings
631

Postal code 06-440 is used in 17 localities, including Gąsocin, Soboklęszcz, Cichawy, Bądkowo, Gutków (Sońsk municipality, ciechanowski county, mazowieckie voivodeship). It covers 631 buildings on 43 streets – the full list with house numbers is below.

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Post office
Post offices in Gąsocin – show branches on the map →
Location
17 localities
Sońsk municipality · ciechanowski county
mazowieckie voivodeship

Which streets have postal code 06-440?

ul. 3 Maja · GąsocinNumbers: 1–3, 5–8, 10–15, 17–18, 20ul. Błotna · GąsocinNumbers: 2, 4–5, 7–13, 13A, 14–17, 20–29, 31, 33ul. Brzozowa · GąsocinNumbers: 1, 1A, 1C, 1F, 1G, 2–3, 3B, 5, 8ul. Cicha · GąsocinNumbers: 1–18, 20, 22ul. Ciechanowska · GąsocinNumbers: 2, 2A, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 22A, 24, 26ul. Długa · GąsocinNumbers: 1–3, 5, 7, 11, 17, 19, 21, 25, 27, 29, 31, 37, 39, 39A, 41, 43, 45, 47ul. Dworcowa · GąsocinNumbers: 1–2, 4, 4A, 4B, 6ul. Główna · GąsocinNumbers: 1–2, 5–29, 29A, 29B, 29C, 31–35, 35a, 36–37, 37A, 38–40, 45ul. Goździkowa · GąsocinNumbers: 4ul. Graniczna · GąsocinNumbers: 1, 1a, 2, 2a, 2b, 3, 3A, 4–13, 13A, 13B, 13D, 15, 15H, 16, 19, 19A, 19F, 21ul. Kolejowa · GąsocinNumbers: 1–2, 4, 8, 8A, 10, 12, 12A, 14, 16, 16A, 18ul. Krótka · GąsocinNumbers: 1–3, 5, 7ul. Łąkowa · GąsocinNumbers: 1, 3, 5–7, 9–11, 11A, 13ul. Leśna · GąsocinNumbers: 2, 4, 6, 8, 10, 10a, 12, 14, 16, 18, 20A, 22, 24, 26, 28ul. Miła · GąsocinNumbers: 5, 9ul. Nasielska · GąsocinNumbers: 1–2, 2A, 2B, 3–9, 9A, 10–11, 13, 15, 15A, 17, 19, 19A, 21, 23ul. Niska · GąsocinNumbers: 1, 1A, 2–3, 3A, 4, 6, 6a, 6b, 10ul. Nowa · GąsocinNumbers: 1–4, 6, 8, 10ul. Nowowiejska · GąsocinNumbers: 1–5, 7, 7A, 9, 11, 13, 15ul. Ogrodowa · GąsocinNumbers: 1–2, 2D, 3–7, 9, 11, 15, 15a, 15b, 17ul. Parcele · GąsocinNumbers: 1–5, 7C, 7E, 8Eul. Płońska · GąsocinNumbers: 1–2, 4, 8ul. Polna · GąsocinNumbers: 1–5, 5A, 6–7, 7A, 7B, 8, 10, 10A, 10B, 12, 14, 16, 22, 24, 30, 32, 36, 38ul. Porzeczkowa · GąsocinNumbers: 1–6, 8ul. Pułtuska · GąsocinNumbers: 1, 1A, 2, 2A, 2B, 3, 3B, 5–7, 9–10, 10A, 11, 14ul. Spacerowa · GąsocinNumbers: 5, 9, 13, 23, 27ul. Strażacka · GąsocinNumbers: 1–3, 3a, 4, 6–12, 12A, 13–14, 14a, 15, 15A, 16–19, 19a, 20, 22, 24–25, 25a, 26, 28, 30, 30A, 32, 34, 36, 38, 40, 42, 44, 46ul. Szkolna · GąsocinNumbers: 1–2, 6ul. Wiejska · GąsocinNumbers: 1, 1A, 2–3, 3A, 4–12ul. Zacisze · GąsocinNumbers: 1, 3, 5–16, 23, 25, 27, 29, 31ul. Lipowa · GąsocinNumbers: 1, 3ul. Ciechanowska · SoboklęszczNumbers: 1–2, 2A, 3–9, 9a, 10, 10A, 11, 13–17, 17A, 18ul. Kolonia · SoboklęszczNumbers: 1–2, 2A, 3, 3a, 4–9, 9C, 9G, 9K, 10–14, 16–18, 19A, 19B, 20–28, 30, 30A, 32, 32A, 33–34, 34A, 34B, 34C, 34D, 34G, 34J, 34L, 34M, 35–37, 37A, 38ks. Kazimierza Szałwińskiego · SoboklęszczNumbers: 2, 6–8, 10–11, 13ul. Kwiatowa · SoboklęszczNumbers: 2–12, 12a, 13–16, 18–19, 22–27, 29, 31–32, 32A, 33, 35ul. Letnia · SoboklęszczNumbers: 1, 3, 6, 8, 10, 12, 14ul. Nasielska · SoboklęszczNumbers: 1, 4–6, 8, 10, 14, 16, 18, 20, 22, 24, 24A, 26, 28, 30, 30A, 30B, 32, 34, 34b, 34e, 36, 36A, 36B, 38, 40, 42, 42A, 44, 48, 50, 56, 58, 60, 62, 64, 66, 68, 70, 72ul. Płońska · SoboklęszczNumbers: 1–2, 6, 8, 10, 14, 16–18, 20, 22ul. Różana · SoboklęszczNumbers: 1–2, 4, 6ul. Spokojna · SoboklęszczNumbers: 2, 6ul. Wiosenna · SoboklęszczNumbers: 1–2, 5, 7–11, 13ul. Wspólna · SoboklęszczNumbers: 1–2, 4–5, 7, 9, 11, 15ul. Bobrowa · CichawyNumbers: 8, 10, 14, 20, 26, 28

Which localities have postal code 06-440?

GąsocinSoboklęszczCichawyBądkowoGutkówKałęczynKomory DąbrowneKosmy-PruszkiKoźniewo ŚrednieKoźniewo WielkieKoźniewo-ŁysakiŁopacinOstaszewoSkrobocinŚlubowoSpądoszynWola Ostaszewska

How to address a letter or parcel in Poland?

Jan Kowalski
ul. 3 Maja 1
06-440 Gąsocin

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 address does postal code 06-440 cover?

Postal code 06-440 covers 17 localities: Gąsocin, Soboklęszcz, Cichawy, Bądkowo, Gutków, Kałęczyn, Komory Dąbrowne, Kosmy-Pruszki, Koźniewo Średnie, Koźniewo Wielkie and more, including streets: 3 Maja, Błotna, Brzozowa, Cicha, Ciechanowska (ciechanowski county, mazowieckie voivodeship).

Where is postal code 06-440?

In mazowieckie voivodeship, ciechanowski county, Poland.

Is postal code 06-440 enough to send a parcel?

No – always write the postal code together with the town or post office name and the full address (street and building number, or the village name with the house number).

Which postal codes are next to 06-440?

06-445

Which municipality and county does 06-440 belong to?

The 06-440 area (Gąsocin) lies in Sońsk municipality (gmina), in ciechanowski county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.7365, 20.7187.

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