Published: 11:25 AM, 21 September 2026
Declining Birth Rate in Japan Causes Worries
Sabrina Gonzales
Japan is confronting a demographic challenge that is becoming increasingly difficult to ignore. The country's declining birth rate, combined with a rapidly aging population and a shrinking workforce, is raising concerns about the future of its economy, social security system and local communities.
Official figures show how quickly the situation is changing. In 2024, Japan recorded 686,061 births among Japanese residents, down 5.7 percent from the previous year. The total fertility rate-the average number of children a woman is expected to have during her lifetime-fell to a record-low 1.15.
The decline has continued for decades, turning what was once viewed as a long-term demographic trend into an immediate national concern.
Japan's total population stood at about 123.05 million in October 2025, according to preliminary census figures. That represented a decrease of about 3.1 million, or 2.5 percent, from 2020.
The number of children is falling particularly rapidly. As of April 1, 2026, Japan had approximately 13.29 million people under the age of 15, a record low and the 45th consecutive annual decline.
An Aging Society
Japan is already one of the world's oldest societies. In 2024, people aged 65 and older numbered about 36.24 million, representing 29.3 percent of the population, according to Japan's Statistics Bureau. The government projects that the proportion could rise to 38.7 percent by 2070.
This demographic structure creates a difficult imbalance. The number of elderly people requiring pensions, health care and other public services is increasing, while the number of younger people entering the workforce is declining.
The consequences can be seen in communities across Japan. Some rural towns have lost large portions of their younger populations as people move toward major cities for education and employment. Schools have closed or merged, local businesses have struggled to find workers, and some communities face difficulties maintaining public transportation and other essential services.
The demographic problem is therefore not simply about the number of babies being born. It affects the way Japanese society functions.
Why Are Fewer Children Being Born?
Several factors are contributing to Japan's declining fertility rate.
One major factor is the changing economic environment facing younger adults. Housing, education and child-rearing costs can make starting a family financially difficult. Employment has also changed significantly from the era when stable, long-term corporate employment was more common.
Marriage patterns are another important factor. In Japan, childbirth remains closely associated with marriage, so a decline in marriage rates has a direct effect on the number of births. Younger generations are also marrying later, reducing the period in which couples can have children.
The average age of mothers at first childbirth increased from 25.6 years in 1970 to 31.0 years in 2023, according to the Statistics Bureau. The government has also noted the connection between later childbirth and Japan's declining birth rate.
Work-life balance presents another challenge. Long working hours and demanding workplace cultures have historically made it difficult for employees to combine careers with raising children. Although working conditions and parental-leave policies have changed, many families continue to face pressure over childcare and household responsibilities.
Pressure on the Economy
The shrinking population presents significant economic challenges.
A smaller working-age population can mean fewer employees available to fill jobs. Japan already faces labor shortages in sectors such as health care, construction, transportation, retail and hospitality.
A declining workforce can also affect economic growth. With fewer workers and consumers, businesses may have to operate in smaller domestic markets while investing more heavily in automation and productivity improvements.
Japan has responded by expanding the use of robots, artificial intelligence and other technologies. It has also gradually increased its reliance on foreign workers. However, technology and immigration can address only parts of the demographic challenge.
The government is therefore seeking to make raising children more affordable and compatible with employment.
In 2025, Japan's health minister said the government was implementing a child and family support package worth about 3.6 trillion yen, while also emphasizing the need for changes in working practices and broader social attitudes.
A Challenge for Social Security
The declining birth rate is particularly important for Japan's pension and health care systems.
Public pension systems depend substantially on contributions from people who are working. When the number of workers decreases while the elderly population increases, maintaining adequate benefits becomes more complicated.
Health and long-term care systems face similar pressures. An older population generally requires more medical treatment and assistance with daily living, increasing demand for doctors, nurses, caregivers and other professionals.
The government must therefore find ways to support older citizens without placing unsustainable burdens on younger generations.
This has made demographic policy one of Japan's central economic and social issues.
Rural Japan Faces a Special Risk
The demographic decline is especially visible outside Japan's largest metropolitan areas.
Young people frequently leave smaller towns for Tokyo, Osaka, Nagoya and other major urban centers. Once they establish careers and families in those cities, they may not return.
This can create a cycle of population decline. Fewer children mean fewer students; fewer students can lead to school closures; fewer schools and services can make communities less attractive to young families; and the resulting decline can accelerate population loss.
Japan's 2025 population census found that the country's overall population had declined by 2.5 percent from 2020. The decline is therefore no longer limited to isolated rural areas but has become a national demographic reality.
Searching for Solutions
Japanese policymakers have introduced financial assistance for families, expanded childcare services and promoted parental leave. The government has also encouraged companies to adopt more flexible working arrangements.
Yet demographic change cannot be reversed quickly.
Even if fertility rates rise immediately, it would take many years before larger numbers of children become adults and enter the workforce. Japan must therefore prepare simultaneously for continued population aging and attempt to make family formation easier for future generations.
Some economists argue that improving wages, reducing excessive working hours, expanding affordable housing and making childcare more accessible could help. Others emphasize the need for greater equality between men and women in employment and household responsibilities.
There is no single policy capable of solving the problem.
A Defining Test for Japan
Japan's demographic decline represents one of the country's most significant long-term challenges. It touches nearly every part of national life, from schools and hospitals to pensions, businesses and rural communities.
The latest figures suggest that the decline is continuing rather than stabilizing. The number of children has fallen for decades, while the share of elderly people has reached historically high levels.
Japan is therefore entering a period in which demographic policy will be as important as economic policy.
The challenge is not simply to persuade people to have more children. It is to create social and economic conditions in which people who want children can realistically afford to raise them while maintaining secure employment and a reasonable quality of life.
Japan's experience also offers a warning to other aging societies. Falling birth rates can develop gradually, but their consequences accumulate over generations.
For Japan, the question now is how to adapt to a smaller and older population while creating conditions that allow younger generations to build families if they choose.
The country's response will help determine not only its demographic future but also the shape of its economy and society for decades to come.
Sabrina Gonzales is an independent researcher and an essayist based in Manila, Philippines.
