BazaKodow – postal codes in Poland

Postal code

ul. Konstantego Ciołkowskiego, Sieradz

Sieradz, Sieradz municipality (gmina), sieradzki county (powiat), łódzkie voivodeship

The postal code for ul. Konstantego Ciołkowskiego in Sieradz is 98-200. Below you will find a map of the area, the post office and streets with the same code. This street has 14 buildings with a listed postal code; 40 other streets in this locality also use 98-200. The locality is in sieradzki county (powiat), łódzkie voivodeship.

Which postal code applies to each building number on ul. Konstantego Ciołkowskiego?
CodeBuilding numbers
1–12, 14, 16

How to address a letter or parcel in Poland?

Jan Kowalski
ul. Konstantego Ciołkowskiego 1
98-200 Sieradz

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. Konstantego Ciołkowskiego, Sieradz?

The postal code for ul. Konstantego Ciołkowskiego (Sieradz) is 98-200.

What determines the postal code for ul. Konstantego Ciołkowskiego?

ul. Konstantego Ciołkowskiego (Sieradz) has one postal code (98-200), so the building number does not affect the code.

Which other streets use postal code 98-200?

Where else can you find ul. Konstantego Ciołkowskiego?

All localities with ul. Konstantego Ciołkowskiego →

Which postal codes are near 98-200?

Where is ul. Konstantego Ciołkowskiego, Sieradz?

ul. Konstantego Ciołkowskiego, Sieradz, lies in Sieradz municipality (gmina), in sieradzki county (powiat), łódzkie voivodeship, Poland. Centre of the area based on address points: 51.6018, 18.7307.

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