Demographics · Issue 02
Dhaka will be first. Tokyo will be seventh.
WUP 2025: Dhaka 36.6 million in 2025, about 52 million in 2050. Jakarta 41.9 then about 52. Tokyo 33.4, then about 31, and seventh. Four capitals, twenty-five years, one inversion.
- Jakarta
- Dhaka
- Tokyo
- Delhi
- Dhaka, 2050 path (WUP 2025)
- ~52m
- Jakarta 2025, still first today
- 41.9m
- Tokyo 2050, seventh
- ~31m
- Delhi 2050 path
- 33.9m
The 2000 ranking is a museum piece
Tokyo was the world’s largest metropolitan area in 2000. It is third in 2025 and seventh in 2050, on the UN’s own path, at about 31 million. Dhaka, the capital of Bangladesh, goes from 36.6 million to about 52 million and first. Jakarta, still first today at 41.9 million, is caught. Delhi grows, slowly, because India is already urbanising from a gigantic base. This is the population change of countries, expressed as their capitals.
A capital is a climate and a pipe
Dhaka floods. Jakarta sinks. Tokyo ages. Delhi chokes. The investing stack is not ‘buy Bangladesh GDP’. It is water, drainage, cooling, housing that does not sit in a khal, and a grid that still works at 42°C. Pair with The uninsurable year and 655 million without electricity. The 2050 first city is a development-finance problem wearing a skyline.
The long view is two 52-million cities and one shrinking one
Own the urban bill of materials in Dhaka and Jakarta, sized for politics and for climate. Own Tokyo as a density-without-growth retrofit. Do not own a 2018 textbook that still ranks Tokyo first as if a definition had not moved 30 million people.
Investing lens
Horizon 10–25 years · Educational, not advice
Capital-city population is the demand curve under water, housing and cooling in South and South-East Asia. Tokyo is the control — a rich capital that shrinks.
Where the map points
- Water, drainage and flood in Dhaka and Jakarta
- Housing and transit in growing South Asian capitals
- Retrofit and care in Tokyo
- Avoid a rich-world luxury tower as a 2050 Dhaka proxy
What can break it
- A WUP path is a model, not a census
- Sea-level and subsidence that strand a 52-million city
- Politics that freeze rents and freeze supply together
CHART does not recommend securities, funds or trades. Figures can be revised by their publishers. Do your own research and consider regulated advice before allocating capital.
Sources
Every headline number traces to a named publisher. Contextual sources inform the essay, not the key stat.
- 01PrimaryUnited Nations Population Division2025World Urbanization Prospects 2025 — Summary of Results
More than half the world lives in urban areas, up from about one-third in 1950, toward about two-thirds by 2050. 2025 Degree of Urbanisation: Jakarta ~42 million (1st), Dhaka ~37 million, Tokyo 33 million. Previous vintage had Jakarta ~12 million (30th).
- 02CorroboratedGerman Federal Statistical Office (Destatis)2025The largest cities worldwide 2025
WUP 2025: Jakarta 41.9 million, Dhaka 36.6, Tokyo 33.4. Worldometer UN 2025 column matches and adds 2030/2050 paths used in Dhaka will be first.
- 03CorroboratedUnited Nations Regional Information Centre2026-07-02World's Largest Cities: How Megacities Will Change by 2050
WUP 2025 wrap: Tokyo largest in 2000, overtaken by Jakarta and Dhaka. 2050: Dhaka and Jakarta each >50 million. Tokyo ~31 million, seventh. London 10.4 million (33rd). Istanbul 15 million, Moscow 14.5 million.
- 04PrimaryUnited Nations Population Division2024-07World Population Prospects 2024
Peak ~10.3 billion in the mid-2080s. Global TFR 2.25; China 1.01; more than half of countries below replacement.
Keep reading
Jakarta was thirtieth. Then they counted the city.
UN World Urbanization Prospects 2025, new Degree of Urbanisation: Jakarta 41.9 million, the world’s largest city. The previous vintage had it at about 12 million and 30th. Dhaka 36.6. Tokyo 33.4, no longer first. Nine of the ten largest cities are in Asia. Seven of them are capitals.
41.9m
Jakarta, 2025 (WUP 2025)
Almost half of Korea lives in Seoul
WUP 2025 Seoul 22.5 million. WPP 2024 Korea about 51.7 million. That is 43% of a country in one capital. Delhi is 2% of India. The capital is not the country. Except when it is.
43%
Seoul metro / Korea, 2025
The city already won
UN: more than half of humanity lives in urban areas. In 1950 it was about a third. By 2050 it will be about two-thirds. The century’s demand is a skyline: housing, wires, water, heat, and a bus.
~58%
World urban share, mid-2020s (UN)
A quieter catastrophe year is not a safer planet
Insured natural-catastrophe losses fell to $107 billion in 2025. Swiss Re still pencils $148 billion if 2026 merely returns to trend. The gap is luck, not adaptation.
$107bn
Insured nat-cat losses, 2025
655 million people still sit in the dark
The joint IEA / World Bank / WHO tracking print for 2026: 655 million people have no electricity. Renewables overtook coal in the same decade. The last mile is not a terawatt-hour chart. It is a continent.
655m
People without electricity, 2026 tracking