Urban Development in Vietnam 11 indicators covering urban development for Vietnam. IndicatorLatest Year10-yr change Rank Population in the largest city 24.9% 2025 up 1.8% 98th Population density 320.18 people per sq. km of land area 2023 up 10.6% 38th PM2.5 air pollution, mean annual exposure 24.78 micrograms per cubic meter 2023 down 16.3% 62nd Population in urban agglomerations of more than 1 million 20.22 million 2025 up 42.0% 20th Population in urban agglomerations of more than 1 million, per capita 0.199 units per person 2025 up 29.8% 68th Population in urban agglomerations of more than 1 million, annual 2.85 % change on previous year 2025 down 33.6% 35th Population in urban agglomerations of more than 1 million, per unit 0 units per US$ of GDP 2025 down 34.0% 54th Population in urban agglomerations of more than 1 million, per square 60.88 units per square kilometre 2023 up 45.6% 18th Population in largest city 9.82 million 2025 up 33.6% 24th PM2.5 air pollution, population exposed to levels exceeding WHO 100.0% 2017 unchanged 1st Dollar value of all resources made available to strengthen 18.28 million 2023 up 754.9% 8th