Gebze

Gebze
District and municipality
Gebze from above
Logo
Map showing Gebze District in Kocaeli Province
Gebze Location within Turkey Gebze Location within Marmara
Coordinates: 40°48′N 29°26′E
Country	Turkey
Province	Kocaeli
Government
• Mayor	Zinnur Büyükgöz (AKP)
Area	418 km2 (161 sq mi)
Population  (2022)	407,019
• Density	974/km2 (2,520/sq mi)
Time zone	UTC+3 (TRT)
Postal code	41400
Area code	0262
Website	www.gebze.bel.tr

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Gebze (Turkish pronunciation: [ˈɟebze]), formerly known as Libyssa, is a working-class district and one of the municipalities in Kocaeli Province, Turkey. Its area is 418 km², and its population is 407,019 (2022). It is situated 65 km (30 mi) southeast of Istanbul, on the Gulf of Izmit, the eastern arm of the Sea of Marmara. Gebze is the largest district by population size in the province as of 2022, exceeding İzmit, the provincial capital. Its population consists of a colossal working class, one of the largest in Turkey, as it hosts 10 industrial parks, which contain 1,384 companies and employ over 130,000 people.