ATLAS · MEGA-CITIES · TURKEY
Istanbul
Istanbul is the one mega-city of Turkey — the only urban area in the country to pass five million people. The largest, Istanbul, holds an estimated 10,061,000people across its urban agglomeration — a giant of over ten million. From Natural Earth, snapshot 2026-06-24.
MEGA-CITYIstanbul
POPULATION~10,061,000
NUMBER OF MEGA-CITIES1
The mega-city
Istanbul~10,061,000 people
In context
Where Istanbulsits on the world’s scale of mega-cities — from the cities just over five million to the singular supergiant above twenty.
20M+
15–20M
10–15MIstanbul is here
7–10M
5–7M
Mega-cities of other countries
Japan · United States · Mexico · India · Brazil · China · Bangladesh · Argentina