Urban Development in Senegal 12 indicators covering urban development for Senegal. IndicatorLatest Year10-yr change Rank Population in the largest city 34.7% 2025 down 15.2% 58th Population density 93.89 people per sq. km of land area 2023 up 31.8% 111th PM2.5 air pollution, mean annual exposure 41.65 micrograms per cubic meter 2023 up 15.3% 21st Population in urban agglomerations of more than 1 million 3.66 million 2025 up 32.6% 59th Population in urban agglomerations of more than 1 million, per capita 0.1933 units per person 2025 up 2.2% 74th Population in urban agglomerations of more than 1 million, annual 3.34 % change on previous year 2025 up 28.7% 23rd Population in urban agglomerations of more than 1 million, per unit 0.0001 units per US$ of GDP 2025 down 36.3% 22nd Population in urban agglomerations of more than 1 million, per square 17.81 units per square kilometre 2023 up 30.9% 61st Population in largest city 3.66 million 2025 up 32.6% 50th Africa's Development Dynamics (AfDD) Table 23 - Ecological 50.89 Hectares 2020 up 42.2% 85th PM2.5 air pollution, population exposed to levels exceeding WHO 100.0% 2017 unchanged 1st Dollar value of all resources made available to strengthen 10.13 million 2023 up 631.4% 25th