TOKYO, July 30 — Japan’s population has dropped below 120 million for the first time in 42 years, according to data released by the Ministry of Internal Affairs and Communications in 2025. The total number of Japanese nationals — excluding foreign residents — stood at 119.6 million as of January 1, 2025, representing a 0.6% decline from the prior year. The last time the population fell below that threshold was 1982, a span that underscores the accelerating demographic shift in the world’s third-largest economy.
For a nation that has long relied on a large domestic consumer base to sustain its manufacturing and technology sectors, the figures signal a structural contraction with direct supply-chain consequences. Fewer workers mean tighter labor markets, rising automation adoption, and a shrinking pool of domestic customers — all factors that shape how Japanese electronics, automotive, and robotics companies plan production capacity both at home and abroad.
The numbers are stark. Births in 2024 hit a record low of 720,000, while deaths exceeded 1.6 million, yielding a natural decrease of 900,000. The total fertility rate, measured at 1.2 in 2023, remains far below the replacement level of 2.1.
That gap between births and deaths has been widening for years, and the 2024 figures mark the most acute imbalance yet recorded. Japan’s population aged 65 and over has reached 29% of the total — the highest proportion of any country in the world.
That ratio strains pension systems, health-care infrastructure, and the tax base. It also shifts demand patterns: products and services tailored to elderly consumers — from home-care robots to simplified electronics — are growing market segments, while youth-oriented industries face a long-term demand ceiling.
Aging Crisis Deepens
Prime Minister Shigeru Ishiba, who took office in October 2024, has identified the demographic crisis as his top priority. He has proposed a ‘National Childcare Strategy’ backed by a budget of 4 trillion yen ($27 billion) over three years. The plan aims to boost financial support for families, expand daycare capacity, and encourage higher birth rates — but policy measures have so far failed to reverse the trend in other advanced economies facing similar headwinds.
Japan’s own government projections, from the National Institute of Population and Social Security Research, indicate the population could fall to 87 million by 2060 if current trends persist. That represents a roughly 27% decline from the 2025 figure, an outlook that compels Japanese businesses to look overseas for growth and to accelerate productivity-enhancing investments in automation and artificial intelligence.
Government’s National Childcare Strategy
The supply-chain implications are already visible. Japanese manufacturers have been shifting production closer to consumption markets in Southeast Asia and North America, partly to offset shrinking domestic demand. At the same time, companies like Fanuc and Keyence are investing heavily in factory automation, betting that labor-scarce Japan will serve as a testbed for technologies that other aging societies — including South Korea, Italy, and parts of China — will later adopt.
For now, the demographic data provides a sobering baseline. With births at a record low and deaths outpacing them by a wide margin, the natural decrease of 900,000 in a single year is roughly equivalent to losing a city the size of Yokohama.
The question for policymakers and corporate strategists alike is whether the National Childcare Strategy can bend the curve before the working-age population contracts further.
Sources
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