Körfez
Körfez or formerly Yarımca is a district of Kocaeli. This district is surrounded by Gebze and Dilovası in the west, Şile in the north and Derince in the east. Large industrial establishments such as Tüpraş, Petkim and İsdaş are located in this district. There is a pond in the district where the drinking water needs were met in the past.
