Japan's Ministry of Internal Affairs and Communications released preliminary results of the 2025 national census on May 29, showing the country's total population has fallen to 123,049,524 — a decline of 3,096,575 people, or approximately 2.5%, from the 2020 survey. Both the absolute decline and the rate of decrease are the largest recorded since the national census began in 1920.
The figures include foreign residents living in Japan. Even as the foreign resident population has reached 3.92 million and foreign workers have surpassed 2.57 million, these gains have proven insufficient to reverse Japan's overall demographic contraction.
Rising Foreign Population Cannot Offset Native Decline
In recent years, Japan's government has expanded its Technical Intern Training Program, introduced Specified Skilled Worker visas, and pursued overseas talent recruitment to address labor shortages. Foreign workers have become a structural pillar of Japanese industry as the population ages and birthrates fall.
Yet the data reveals a stark arithmetic gap. Annual births in Japan have fallen below 700,000, while annual deaths exceed 1.6 million — leaving a natural population deficit of more than 900,000 per year. Even record-high foreign resident numbers cannot close that gap, prompting a reassessment of whether the expectation that immigration could compensate for population decline was overly optimistic.
Decline Reaches Tokyo's Satellite Cities for the First Time
A structurally significant finding in this census is that population loss is no longer confined to rural areas and regional cities. Of Japan's 47 prefectures, only Tokyo and Okinawa recorded population growth. The remaining 45 all declined.
Most notably, Kanagawa, Saitama, and Chiba — the core satellite prefectures of the Greater Tokyo Area — along with regional economic centers such as Aichi and Fukuoka, recorded population decreases for the first time. For decades, these areas sustained growth by absorbing people relocating from other parts of Japan, a pattern driven by the phenomenon known as 東京一極集中 — the hyper-concentration of population in Tokyo — even as national totals fell. That buffer has now disappeared.
Over 90% of Municipalities Now Shrinking
At the municipal level, the contraction is more pronounced. More than 90% of Japan's cities, towns, and villages recorded population declines. Of those, 27.7% lost more than 10% of their population over five years — nearly double the proportion recorded in the previous census.
Local governments facing sustained population loss are increasingly confronting school consolidations, cuts to public transportation, insufficient medical resources, and rising numbers of vacant properties.
The National Institute of Population and Social Security Research has previously projected that, if current trends continue, Japan's total population could fall below 90 million by 2070, with the elderly share of the population approaching 40%.
Real Estate Markets Face Accelerating Regional Divergence
For real estate investors, the census reinforces a structural divergence that challenges the concept of "Japanese real estate" as a unified asset class.
As population concentrates in a shrinking number of core urban centers, the market is splitting into divergent trajectories. Central Tokyo and select areas with strong industrial, transport, and international connectivity continue to attract both residents and capital. Regional cities lacking employment and population support face shrinking demand and downward pressure on asset values.
Industry practitioners in the real estate sector have noted that the decisive variable in future property valuation may no longer be location or building quality alone, but whether a given area retains the sustained capacity to attract long-term residents. In a depopulating Japan, what is truly scarce may no longer be land itself, but land where people still choose to live and put down long-term roots.
From Regional Decline to National Contraction
If the defining demographic narrative of the past decade was that rural Japan was disappearing, the 2025 census suggests a broader structural shift: Japan has entered a phase of nationwide contraction.
When populous prefectures such as Kanagawa, Saitama, Chiba, Aichi, and Fukuoka begin recording losses, demographic decline ceases to be a peripheral policy issue and becomes a systemic challenge for Japanese society as a whole. Tokyo may continue to prosper — but the Japan beyond Tokyo is changing faster than many people imagined.
