Postal codes in Niwki - exact code in seconds

Postal codes in Niwki: 37-620

Street list: Niwki

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