Business Insider Polska compared more than 300 municipalities using migration data for 2021–2025. Marki (Marki), Kobyłka (Kobyłka) and Rumia (Rumia) took the leading places.

The criterion was the balance of migration per thousand inhabitants - the difference between arrivals and departures. This indicator helps to see the growth of small cities, but does not directly measure the quality of life, housing affordability or personal preferences of all residents of the country.