Map of Gebze, Turkey

Gebze is a city in Kocaeli, Turkey, with a population of about 281,436. It lies at 40.8028°N, 29.4307°E. Gebze is about 306 km (190 mi) west of Ankara, the capital. The nearest city on our map is Yalova, 21 km to the southwest.

Gebze at a glance

Where is Gebze?

• The 47th largest city in Turkey by recorded population.
• The largest city in Kocaeli on this site.
• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 9 h 14 min on the shortest day to 15 h 06 min on the longest day (around 21 December and 21 June).

Cities near Gebze

• Yalova — 21 km southwest
• Sultanbeyli — 22 km northwest
• Maltepe — 27 km northwest
• Sancaktepe — 28 km northwest
• Körfez — 30 km east
• Derince — 33 km east
• Ataşehir — 33 km northwest
• Gölcük — 34 km east
• Umraniye — 35 km northwest
• Orhangazi — 36 km south

Largest cities in Kocaeli

• İzmit — 196,571
• Derince — 125,485
• Körfez — 90,580
• Gölcük — 56,189

Largest cities in Turkey

• Istanbul — 15,701,602
• Ankara — 3,517,182
• Bursa — 3,101,833
• İzmir — 2,938,292
• Gaziantep — 2,222,415
• Diyarbakır — 1,833,684
• Adana — 1,816,750
• Kayseri — 1,452,458
• Konya — 1,433,861
• Antalya — 1,335,002

Map of Turkey and all its cities →

Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.