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Postal codes in Siemki - exact code in seconds

Postal codes in Siemki: 11-440

Street list: Siemki

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Source: PRG - National Register of Boundaries (GUGiK, open data), EMUiA registry. Data is informational.

The information is provided for reference only. We do not guarantee that postal code or address data is complete, current, or error-free.

Data updated: 2026-07-11

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