Sierpc postal code
Town · sierpecki county (powiat) · Sierpc municipality (gmina) · mazowieckie voivodeship
- codes
- 4
- streets
- 174
Sierpc has 4 postal codes: 00-200, 09-200, 09-201, 19-200. The correct code depends on the street. The directory covers 174 streets.09-200 – 161 streets: 11 Listopada, Adama Mickiewicza, Akacjowa, Aleksandra Fredry and 157 more
All postal codes (4) – Sierpc
Streets A–Z (174)
Streets with the most postal codes – Sierpc
On long streets, the code depends on the building number. The streets with the most codes in Sierpc are: ul. Emilii Plater (2 codes), pl. Fryderyka Chopina (2 codes), ul. Ignacego Krasickiego (2 codes). Click a street to find the code for a specific building number.
How to address a letter or parcel in Poland?
Jan Kowalski ul. 11 Listopada 1 09-200 Sierpc
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
Why does Sierpc have several postal codes?
In larger localities, postal codes are assigned to streets and, on long streets, to building number ranges. Sierpc has 4 postal codes – find the right one in the street directory.
What is the postal code for Sierpc?
Sierpc has 4 postal codes: 00-200, 09-200, 09-201, 19-200. The correct code depends on the street.
Which voivodeship and county is Sierpc in?
Sierpc (town) is in sierpecki county (powiat), Sierpc municipality (gmina), mazowieckie voivodeship.
Which localities are closest to Sierpc?
The closest localities to Sierpc are: Studzieniec (2.7 km), Piaski (2.8 km), Borkowo Kościelne (3 km), Mieszczk (3.4 km), Miłobędzyn (3.5 km), Gorzewo (3.6 km). Distances are measured in a straight line between locality centres.
Localities near Sierpc (sierpecki county)
Which county and municipality does Sierpc belong to?
Sierpc lies in Sierpc municipality (gmina), in sierpecki county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.8528, 19.6674.
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

