Largest Cities in Kocaeli, 41 by Population
Kocaeli, article.
There are 2 city/town in Kocaeli, 41. The largest city of Kocaeli is İzmit with a population of 1,953,035. Other cities include and Gebze population 281,436
İzmit
İzmit, Located in northwestern Turkey, at the easternmost end of the Sea of Marmara, this populous city serves as a vital port and industrial hub.
Gebze
Gebze, City in Kocaeli Province, Turkey
All Kocaeli Cities (Aphebetical)
List of cities, towns, neighborhoods & other populated places in Kocaeli.