Łódź is the third-largest city in Poland almost 700,000 residents. The city is a former industrial hub, but today is known for its creative output, particularly its National Film School. In 2017, it became part of the the United Nations Educational, Scientific and Cultural Organization (UNESCO) Creative Cities Network and was named UNESCO City of Film.

Warsaw is the most populous city in Poland. It has just over 1.8 million residents and a population of over three million in its metropolitan area.

Kraków is the second-largest city in Poland. It is also one of the oldest cities in the country, dating back to the seventh century. Kraków has a population of 782,100, although approximately eight million people live within 100 kilometers of its center.

Wroclaw is the fourth most populated city with 644,624 residents.

Gdansk is the sixth most populated city with 472,525 residents.

More Info: worldpopulationreview.com