Before revision: The largest metropolitan area in Poland, if ranked solely by the number of inhabitants, is the Metropolis GZM (in fact a metroplex), with around 3 million inhabitants (5 million inhabitants in the Upper Silesian metropolitan area) , .
After revision: The largest metropolitan area in Poland, if ranked solely by the number of inhabitants, is the Katowice metropolitan area with around 3 million inhabitants (5 million inhabitants in the Upper Silesian-Moravian metropolitan area) .