Gebze ( Turkish pronunciation: [ˈɟebze] ), formerly known as Libyssa , is a municipality and district of Kocaeli Province , Turkey . Its area is 418 km, 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.
5-527: The district of Gebze is located in the western portion of Kocaeli Province ; with neighbors Körfez to the east; Pendik , Tuzla and Şile in Istanbul to the northwest, west and north respectively; Çayırova and Darıca to the southwest and Dilovası to the southeast. There are 40 neighbourhoods in Gebze District: The northern terminus of Osman Gazi Bridge falls within this area;
10-743: Is 41. The province is located at the easternmost end of the Sea of Marmara around the Gulf of İzmit . Kocaeli is bordered by the province of Istanbul and the Marmara Sea to the west, the Black Sea to the north, the province of Sakarya to the east, the province of Bursa to the south and the province of Yalova to the southwest. The metropolitan area of Istanbul extends to the Kocaeli-Istanbul provincial border. The size and natural conditions of
15-459: Is a province and metropolitan municipality of Turkey and one of only three not to have the same official name as its capital, İzmit , which is thus also sometimes called Kocaeli. Its area is 3,397 km , and its population is 2,102,907 (2023). The province is the successor of the Ottoman -era Sanjak of Kocaeli . The largest towns in the province are İzmit and Gebze . The traffic code
20-609: The Bay of İzmit allow for extensive port facilities, including the Gölcük Naval Base . The province is called the industrial capital of Turkey. Kocaeli has an airport named Cengiz Topel Naval Air Station which is used for military and civilian transport. Kocaeli has three universities: Kocaeli University , Gebze Technical University and Kocaeli Health and Technology University . Data taken from Kocaeli Metropolitan Municipality and Central Dissemination System. The information
25-555: The construction — having a total length of 4 kilometers (with a 1,688-meter main span) — bridges the Sea of Marmara from Kababurun to Dilburnu. The Gebze Metro began construction in 2018 for a 2024 opening. A Marmaray intercontinental commuter rail line connects Gebze to the European side of Istanbul. Gebze is twinned with: Kocaeli Province Kocaeli Province ( Turkish : Kocaeli ili , pronounced [koˈdʒaeli] )
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