Urban Development in Chad 12 indicators covering urban development for Chad. IndicatorLatest Year10-yr change Rank Population in the largest city 29.8% 2025 down 16.3% 76th Population density 15.34 people per sq. km of land area 2023 up 41.1% 199th PM2.5 air pollution, mean annual exposure 42.96 micrograms per cubic meter 2023 up 0.1% 18th Population in urban agglomerations of more than 1 million 1.72 million 2025 up 45.2% 97th Population in urban agglomerations of more than 1 million, per capita 0.082 units per person 2025 up 1.2% 114th Population in urban agglomerations of more than 1 million, annual 4.06 % change on previous year 2025 up 10.2% 13th Population in urban agglomerations of more than 1 million, per unit 0.0001 units per US$ of GDP 2025 down 1.6% 30th Population in urban agglomerations of more than 1 million, per square 1.26 units per square kilometre 2023 up 44.2% 116th Population in largest city 1.72 million 2025 up 45.2% 96th Africa's Development Dynamics (AfDD) Table 23 - Ecological 26.34 Hectares 2020 up 47.2% 112th PM2.5 air pollution, population exposed to levels exceeding WHO 100.0% 2017 unchanged 1st Dollar value of all resources made available to strengthen 987,816 2023 up 41.1% 90th