Japan's demographic transformation is no longer a distant forecast but an accelerating reality, and the National Institute of Population and Social Security Research now estimates the country's population will fall to roughly 100 million by 2050 -- more than 20 million fewer people than today.
The share of residents aged 65 and over stood at 29.4% as of September and is expected to reach 37.1% by midcentury. The dependency ratio -- children and older adults supported by every 100 working-age people -- is projected to rise from 68.0 to 89.0, meaning each working-age person will effectively support one dependent.
Akita Prefecture is currently offering a preview of this future. Its population fell 1.93% year over year as of November 1, the steepest decline of any prefecture, and more than 40% of its residents are already 65 or older. By 2050, Akita's population is projected to drop to around 560,000, roughly 60% of its current size. Japan's total fertility rate fell for the ninth consecutive year in 2024, declining to 1.15 from 1.2. A health ministry survey found around 319,000 babies were born in the first half of 2025, more than 10,000 fewer than the same period last year -- a pace that could put the full-year total at a record low.
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