Upper Silesian–Dąbrowa Basin Metropolis

This article is about the political and economic association of local municipalities. For the geographic area, see Katowice urban area and Katowice metropolitan area. For the industrial region, see Upper Silesian Industrial Region.

Metropolis GZM Górnośląsko-Zagłębiowska Metropolia (Polish)
Metropolitan association
From top, left to right: KTW buildings in Katowice Plac Stulecia (Centennial Square) in Sosnowiec Market Square and City Hall in Gliwice Market Square in Bytom Historic Silver Mine in Tarnowskie Góry Royal Castle in Będzin
Wordmark
Location on the map of Poland
Country	Poland
Voivodeship	Silesian
Government
• Body	Management Board of Metropolis GZM
• Chair of the Management Board	Kazimierz Karolczak
• Chair of the Assembly	Marcin Krupa
Area
• Total	2,554 km2 (986 sq mi)
Population  (2023)
• Total	2,128,034
• Density	833.2/km2 (2,158/sq mi)
GDP
• Total	€44.570 billion (2021)
• Per capita	€20,800 (2021)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
Area code	+48 32
Website	metropoliagzm.pl

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The Metropolis GZM (Polish: Metropolia GZM, formally in Polish Górnośląsko-Zagłębiowska Metropolia (Upper Silesian-Dąbrowa Basin Metropolis) is a metropolitan association (Polish: związek metropolitalny) composed of 41 contiguous gminas, with a total population of over 2 million, covering most of the Katowice metropolitan area in the Silesian Voivodeship of Poland. The seat of metropolitan administration is Katowice, the largest member city and the voivodeship capital.