South Korea’s fertility rate drops to 0.72, the world low
South Korea’s total fertility rate has fallen to 0.72 births per woman, the lowest national figure recorded, according to Statistics Korea. The measure estimates how many children a hypothetical group of women would have over their lifetimes if current age-specific birth rates continued; it does not mean every couple will have the same number.
Released in 2024, the result extends a long decline and raises questions about population decline, economic growth and the sustainability of social services. For Australian readers, South Korea offers a particularly sharp example of how housing costs, insecure employment, work culture and delayed family formation can combine to suppress births.
A record with wide consequences
About 240,000 babies were born in South Korea in 2023, while roughly 380,000 deaths were recorded. The natural decline of about 141,000 people contributed to a total population fall of just over one million, with the country reaching approximately 51.2 million residents.
The consequences extend beyond schools and hospitals. A smaller workforce must support more pensioners, while the national tax base contracts. Local governments face pressure to consolidate services as towns lose young adults, and military recruitment is becoming harder as the number of conscripts falls. Analysts caution that a projected rebound could occur as smaller birth cohorts reach adulthood, but structural pressures would remain.
Why the birth rate is falling
Demographers point to several overlapping factors. Marriage is happening later, housing is expensive relative to incomes, and young adults often face unstable contracts or long periods of graduate study before securing permanent work. A housing rule introduced in Seoul to discourage speculative buying has also made some family-sized apartments harder to access.
Workplace culture remains influential. Long hours and difficulty switching off can make demanding careers incompatible with caring for children, while traditional expectations often leave women with a disproportionate share of childcare responsibilities. Delayed marriages and postponed births then reinforce one another, particularly among people in their late twenties and thirties.
The debate spreads quickly through online communities, where demographic decline can become a contest over blame and policy. The Japanese discussion rankings on 5ch illustrate how readers in a nearby economy react to population and employment trends, although forum commentary should be treated as a reflection of public discussion rather than statistical evidence.
Placing 0.72 in context
South Korea’s rate sits far below the level generally associated with maintaining a population without migration. The comparison below uses rounded 2023 figures, as national estimates and definitions can vary slightly.
| Population or benchmark | Total fertility rate | Context |
|---|---|---|
| South Korea | 0.72 | Lowest recorded national rate |
| Japan | 1.20 | Below replacement level |
| Australia | 1.48 | Below replacement, but well above South Korea |
| OECD average | About 1.58 | A broad measure covering many advanced economies |
| Replacement benchmark | About 2.1 | A rough guide, not a universal target |
The Korean figure also partly reflects a smaller number of women in their twenties, a consequence of earlier birth declines. That cohort effect could produce temporary movements in the rate without resolving underlying social conditions. The future therefore depends less on one favourable statistic than on whether housing, employment and family policies make child-rearing more feasible.
Paths that could change the trend
There is no single intervention capable of reversing a demographic trend shaped by decades of social change. Immediate measures focus on removing practical obstacles, particularly for couples who have postponed children because they cannot find suitable housing or predictable employment.
- Build more family-sized housing near jobs and public transport.
- Reduce unpredictable overtime and strengthen employment protections.
- Expand affordable childcare and support for eldercare.
- Improve job security for younger and contract workers.
Longer-term change depends on making family life compatible with equal participation in paid work. Voluntary measures that help partners share care can influence timing and the number of births without pressuring people into decisions.
- Make parental leave usable by both parents.
- Preserve women’s earnings and advancement during caregiving.
- Permit flexible work without penalising career prospects.
- Support earlier family formation without treating it as an obligation.
Lessons for Australian families
Australia provides a useful comparison because its fertility rate is also below replacement, although its 2023 figure of around 1.48 remained substantially higher than South Korea’s. Australian families still face rising rents, high childcare costs and housing pressure in cities such as Sydney and Melbourne, yet they also benefit from different workplace and social institutions.
Many Australian employers offer paid annual leave and contribute to superannuation, giving households a retirement saving mechanism beyond the state pension. The federal Child Care Subsidy helps families cover the cost of approved care, while flexible work is increasingly common. At the same time, long commutes from outer suburbs and the concentration of jobs in central business districts can make time with children harder to protect.
Australia’s private assisted-reproduction market is well developed, with IVF and egg-freezing clinics operating across Sydney, Melbourne and Brisbane. These services can give people more control over timing, but they do not remove the financial or biological constraints on parenthood. Family customs also differ: Christmas, New Year and school holidays shape annual leave, while Australia’s cultural mix produces widely varying expectations about marriage, childcare and extended-family support.
Reading the wider news cycle
ZUKUS gathers headlines and updates from multiple RSS sources into a continuously updated feed covering world news, business, lifestyle, technology, music and food. That format helps readers notice a major demographic story quickly, but an aggregated headline still requires readers to identify its original publisher, date and statistical source.
The same feed can place population reports beside geopolitical developments. An article about deeper Iran-Russia cooperation, for instance, may sit close to stories about household formation or economic pressure, even though the subjects have no direct causal relationship.
Context is especially important when comparing fertility figures. Temporary cohort effects, migration, age structure and differences in measurement can all influence short-term movements. South Korea’s 0.72 is an immediate warning about population ageing, but lasting change will depend on whether economic and social barriers to family formation ease over time.