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Yes it is, is it a town? I am not sure because local people call it a city of the Silesian Region/Oblast.

Katowice are a capital city of Silesian Voivodship (region) and is a part of conurbation of more than 2,5 million people

Oh yes I forgot about the 2.5 million population...

I just mentioned it because Katowice area is not so small :)

Yes, I agree, it's not small.