Urban Development in Colombia 13 indicators covering urban development for Colombia. IndicatorLatest Year10-yr change Rank Population in the largest city 28.0% 2025 up 4.6% 82nd Population density 47.16 people per sq. km of land area 2023 up 13.4% 155th PM2.5 air pollution, mean annual exposure 18.36 micrograms per cubic meter 2023 down 0.8% 98th Population in urban agglomerations of more than 1 million 23.80 million 2025 up 17.2% 16th Population in urban agglomerations of more than 1 million, per capita 0.4454 units per person 2025 up 3.1% 17th Population in urban agglomerations of more than 1 million, annual 1.04 % change on previous year 2025 down 56.3% 80th Population in urban agglomerations of more than 1 million, per unit 0.0001 units per US$ of GDP 2025 down 24.8% 44th Population in urban agglomerations of more than 1 million, per square 20.99 units per square kilometre 2023 up 20.3% 49th Population in largest city 11.80 million 2025 up 21.5% 16th Crude steelmaking capacity 2.02 Tonnes 2025 unchanged 46th Africa's Development Dynamics (AfDD) Table 23 - Ecological 206.75 Hectares 2020 up 22.0% 41st PM2.5 air pollution, population exposed to levels exceeding WHO 92.1% 2017 down 7.8% 156th Dollar value of all resources made available to strengthen 13.54 million 2023 up 1,650.2% 18th