Demographics · Issue 02
A civilisation at 0.75 children
Statistics Korea: the total fertility rate was 0.75 in 2024 and 0.80 in the 2025 preliminary. Replacement is 2.1. Seoul has been lower still. This is not a baby-bust. It is a new steady state until something enormous moves.
- Korea TFR, 2024
- 0.75
- 2025 preliminary
- 0.80
- Replacement
- 2.1
- 2015
- 1.24
A rebound that is still a collapse
The 2025 preliminary print, 0.80, was greeted as a thaw. It is, versus 0.72 in 2023. It is not versus 2.1. A woman in Korea is still expected to have one-third of a replacement family. Marriages ticked up. Births rose 6.8% to 254,500. Deaths were still 363,400. The population shrinks. Pair this with Fewer children and The grey century. Korea is the leading indicator for East Asia, and East Asia is the leading indicator for southern Europe.
Housing, hours, and a pediatric clinic that closes
The investing map is not a baby-bonus ETF. It is automation in factories that cannot hire 25-year-olds, later-life care, and a housing stock built for a 50-million-person peak that has already happened. Seoul’s 0.6-range TFR in recent years is a city-level number that should scare every luxury residential model in an ultra-low-fertility capital.
The long view is 0.8 as a plateau, not a recovery
Governments can move a TFR by 0.1 with cash and housing. They have not moved it by 1.0 anywhere rich. Own robots, hearing aids, and Korean exporters that sell to younger countries. Do not own a 2031 ‘TFR back to 1.0’ housing recovery.
Investing lens
Horizon 10–25 years · Educational, not advice
0.75–0.80 is the Korean steady state until housing and hours change. Own automation and later-life care. Be sceptical of domestic housing beta that needs first-time buyers.
Where the map points
- Korean industrial automation and robotics
- Later-life care, devices, hearing
- Exporters selling into younger labour markets
- Avoid Seoul luxury residential as a demographic compounder
What can break it
- A real marriage-and-housing reform that does move TFR
- Immigration at a scale Korea has not accepted
- A preliminary 2025 print that revises down
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.
- 01PrimaryReuters / Ministry of Data and Statistics2026-02-25South Korea’s birthrate, the world’s lowest, rises again
Preliminary 2025 TFR 0.80, up from 0.75 in 2024. Births 254.5 thousand, deaths 363.4 thousand.
- 02CorroboratedStatistics Korea / Ministry of Data and Statistics2025-08-27Birth Statistics in 2024
2024 TFR 0.75. 2023 trough 0.72. Series used for 2015–2024 annual points.
- 03PrimaryUnited 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
The age of fewer children
Global fertility is 2.25 and falling through replacement in the 2030s. The 21st century’s quietest mega-trend is a smaller next generation.
2.25
Global total fertility rate (UN WPP 2024)
Two billion people will be over sixty
There were a billion people aged 60+ in 2020. WHO sees 1.4 billion in 2030 and 2.1 billion in 2050. By the late 2070s the 65s outnumber the children. This is the quietest force in the issue, and the one that does not mean-revert.
2.1bn
People aged 60+, 2050 (WHO)
China installed half the world’s robots
In 2024 the world’s factories took 542,000 new industrial robots. 295,000 of them went to China — more than the rest of Earth combined.
54%
China’s share of new industrial robots, 2024
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)