: It remains a key component of the Upper Silesian Industrial Region, one of the most densely populated areas in Central Europe. Why You Might See "131667" Today
: The city is famous for its history in coal mining and heavy industry, which fueled its population growth through the mid-20th century. 131667 zip
According to historical data from the Wikipedia list of cities in Poland , the number was the recorded population of Ruda Śląska in 1960 . : It remains a key component of the