About Gölcük
Gölcük is a city in Kocaeli, Turkey with a population of 56,189. It is the 172nd largest of the 416 cities of 15,000 or more listed in Turkey, and the 10,241st largest worldwide. It lies 272 km from Ankara.
Key Facts
Country
Region
Rank in region
#5of 7
Elevation
56 m
Approximate — modelled, not surveyed
Time zone
Europe/Istanbul
Coordinates
40.715, 29.818
Record updated
2025-05-11
Entry edited, not measured
City population, GeoNames. GeoNames publishes no year for its population figures, so “record updated” is when the entry was last edited — not the date the population was measured. Elevation is modelled from a digital elevation model rather than surveyed, so it is approximate.
Nearby Cities
All 416 in TurkeyClosest listed cities by great-circle distance from the city centre.