[1] This figure was 13.6 million when the first official population census was conducted in 1927.
[1] Approximately 10.2% of the population consists of people aged 65 and over.
[1] Istanbul is Turkey's most developed and most populous city.
It also holds the title of the most populous city in Europe.
[3][4] The population data below is taken from the Turkish Statistical Institute and is based on the 2023 address-based population registration system data.