Gebze Population 2026

Gebze has a population of 281,436, making it the #47 biggest city in 🇹🇷 Türkiye, located in Kocaeli. Roughly 0.3% of Türkiye's population lives here. It is about 56× smaller than Istanbul, the country's biggest city.

Location of Gebze (capital Ankara shown for reference). Boundaries: Natural Earth.

Population (city proper)

281,436

Rank in Türkiye

#47

Coordinates

40.80°N, 29.43°E

~182 m elevation · Europe/Istanbul

Distance to capital (Ankara)

306 km

190 miles, straight line

Other big cities in Kocaeli

City	Population	Rank in Türkiye
İzmit	196,571	#61
Derince	125,485	#88
Körfez	90,580	#120
Gölcük	56,189	#168
Karamürsel	30,525	#257
Kandıra	16,264	#391

Cities near Gebze

Karamürsel30,525 people · ~20 km away
Yalova71,289 people · ~21 km away
Sultanbeyli358,201 people · ~22 km away
Maltepe427,040 people · ~27 km away
Sancaktepe489,848 people · ~28 km away
Körfez90,580 people · ~30 km away

FAQ

What is the population of Gebze?

Gebze has a population of 281,436 (city proper, latest official figure via GeoNames), making it the #47 biggest city in Türkiye.

What region is Gebze in?

Gebze is located in Kocaeli, Türkiye.

Is Gebze the capital of Türkiye?

No, the capital of Türkiye is Ankara, about 306 km away.

Sources & notes

Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.

← All biggest cities in Türkiye · Türkiye population by year