Derince is a seaport, municipality and district of Kocaeli Province, Turkey. Its area is 198 km2, and its population is 146,374 (2022). The mayor is Zeki Aygün (AK Parti). Derince Port is one of the few ports in Turkey under government control. The port is operated by the Turkish State Railways (TCDD). Having one of the biggest storage area in the region, the port is widely used for finished vehicle product transportation. Derince is one of the few ports with railway connection in that area, and has the longest rail network within the port. Two rail ferry services use Derince Port, Tekirdağ-Derince operated by TCDD and Derince-Chornomorsk/Poti operated by Bati Wagon. The port is in the privatization list of Privatization Administration. The privatization process had restarted in October 2013. Six companies had offered for Derince Port, but the tender process was cancelled when none of them continued in the public auction.

Composition

There are 17 neighbourhoods in Derince District:

Sport

The İzmit İsmetpaşa Stadium was located in Derince. Derince Belediyespor Women's play in the Turkish Women's First Football League since the 2012–13 season. They finished the 2013–14 season in the third place.

Twin towns — sister cities

Derince is twinned with: