Urban Development in Costa Rica 13 indicators covering urban development for Costa Rica. IndicatorLatest Year10-yr change Rank Population in the largest city 36.6% 2025 up 1.9% 52nd Population density 99.99 people per sq. km of land area 2023 up 8.3% 104th PM2.5 air pollution, mean annual exposure 17.7 micrograms per cubic meter 2023 down 7.1% 100th Population in urban agglomerations of more than 1 million 1.50 million 2025 up 15.8% 105th Population in urban agglomerations of more than 1 million, per capita 0.2916 units per person 2025 up 8.3% 39th Population in urban agglomerations of more than 1 million, annual 1.36 % change on previous year 2025 down 11.4% 67th Population in urban agglomerations of more than 1 million, per unit 0 units per US$ of GDP 2025 down 36.5% 86th Population in urban agglomerations of more than 1 million, per square 28.63 units per square kilometre 2023 up 16.2% 36th Population in largest city 1.50 million 2025 up 15.8% 104th Crude steelmaking capacity 0 Tonnes 2025 — 97th Africa's Development Dynamics (AfDD) Table 23 - Ecological 32.51 Hectares 2020 up 12.0% 105th PM2.5 air pollution, population exposed to levels exceeding WHO 99.7% 2017 down 0.3% 140th Dollar value of all resources made available to strengthen 372,284 2023 down 89.3% 112th