Urban Development in New Zealand 14 indicators covering urban development for New Zealand. IndicatorLatest Year10-yr change Rank Population in the largest city 38.3% 2025 up 2.5% 44th Population density 19.75 people per sq. km of land area 2023 up 17.1% 185th PM2.5 air pollution, mean annual exposure 6.88 micrograms per cubic meter 2023 up 2.9% 177th Population in urban agglomerations of more than 1 million 1.71 million 2025 up 16.8% 98th Population in urban agglomerations of more than 1 million, per capita 0.3214 units per person 2025 up 1.1% 32nd Population in urban agglomerations of more than 1 million, annual 1.08 % change on previous year 2025 down 46.9% 77th Population in urban agglomerations of more than 1 million, per unit 0 units per US$ of GDP 2025 down 21.2% 103rd Population in urban agglomerations of more than 1 million, per square 6.35 units per square kilometre 2023 up 18.9% 96th Population in largest city 1.71 million 2025 up 16.8% 97th Crude steelmaking capacity 0.95 Tonnes 2025 unchanged 62nd Africa's Development Dynamics (AfDD) Table 23 - Ecological 202.99 Hectares 2020 up 2.0% 42nd PM2.5 air pollution, population exposed to levels exceeding WHO 0.0% 2017 down 100.0% 189th Adjusted rural to urban parity index for achieving a minimum 0.8236 2018 down 16.3% 24th Transport equipment indicators — Available seat capacity for schedule 2,037 Per 1 000 inhabitants 2016 up 20.3% 9th