Urban Development in Turkey 11 indicators covering urban development for Turkey. IndicatorLatest Year10-yr change Rank Population in the largest city 21.1% 2025 up 2.0% 111th Population density 110.87 people per sq. km of land area 2023 up 12.1% 96th PM2.5 air pollution, mean annual exposure 26.4 micrograms per cubic meter 2023 down 2.4% 59th Population in urban agglomerations of more than 1 million 33.66 million 2025 up 16.4% 11th Population in urban agglomerations of more than 1 million, per capita 0.392 units per person 2025 up 6.1% 25th Population in urban agglomerations of more than 1 million, annual 1.23 % change on previous year 2025 down 28.8% 73rd Population in urban agglomerations of more than 1 million, per unit 0 units per US$ of GDP 2025 down 36.9% 76th Population in urban agglomerations of more than 1 million, per square 42.64 units per square kilometre 2023 up 17.6% 24th Population in largest city 16.24 million 2025 up 14.9% 12th PM2.5 air pollution, population exposed to levels exceeding WHO 100.0% 2017 unchanged 1st Dollar value of all resources made available to strengthen 3.07 million 2023 down 90.5% 60th