Konstancin-Jeziorna postal code
Town · piaseczyński county (powiat) · Konstancin-Jeziorna municipality (gmina) · mazowieckie voivodeship
- codes
- 2
- streets
- 204
Konstancin-Jeziorna has 2 postal codes: 05-510, 05-520. The correct code depends on the street. The directory covers 204 streets.05-510 – 104 streets: Augustowska, Bartosza Głowackiego, Bolesława Prusa, Bukowa and 100 more05-520 – 70 streets: Adama Asnyka, Anny Walentynowicz, Biedronki, Bolesława Chrobrego and 66 more
All postal codes (2) – Konstancin-Jeziorna
Streets A–Z (204)
Streets with the most postal codes – Konstancin-Jeziorna
On long streets, the code depends on the building number. The streets with the most codes in Konstancin-Jeziorna are: ul. Adama Mickiewicza (2 codes), ul. Akacjowa (2 codes), ul. Białostocka (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. Adama Asnyka 1 05-520 Konstancin-Jeziorna
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 Konstancin-Jeziorna have several postal codes?
In larger localities, postal codes are assigned to streets and, on long streets, to building number ranges. Konstancin-Jeziorna has 2 postal codes – find the right one in the street directory.
What is the postal code for Konstancin-Jeziorna?
Konstancin-Jeziorna has 2 postal codes: 05-510, 05-520. The correct code depends on the street.
Which voivodeship and county is Konstancin-Jeziorna in?
Konstancin-Jeziorna (town) is in piaseczyński county (powiat), Konstancin-Jeziorna municipality (gmina), mazowieckie voivodeship.
Which localities are closest to Konstancin-Jeziorna?
The closest localities to Konstancin-Jeziorna are: Chyliczki (2.7 km), Chylice (2.8 km), Obory (2.8 km), Bielawa (2.8 km), Czarnów (3.2 km), Kierszek (3.4 km). Distances are measured in a straight line between locality centres.
Localities near Konstancin-Jeziorna (piaseczyński county)
Which county and municipality does Konstancin-Jeziorna belong to?
Konstancin-Jeziorna lies in Konstancin-Jeziorna municipality (gmina), in piaseczyński county (powiat), mazowieckie voivodeship, Poland. Centre of the area based on address points: 52.0856, 21.1060.
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