TOKYO - Japan's Ministry of Internal Affairs and Communications has released its latest population estimate, showing that Japan's total population, including foreign residents, stood at 123,802,000 as of October 1st last year, a decrease of 550,000 from the previous year. This marks the 14th consecutive year of population decline.
The number of Japanese nationals alone fell by 898,000 to 120,296,000, the largest annual drop since statistics began in 1950.
Japan’s modern population history is marked by a dramatic rise in the postwar period followed by a prolonged and accelerating decline in recent decades. After World War II, Japan experienced a population boom, driven by a postwar baby boom, rapid improvements in healthcare, and rising life expectancy. In 1950, Japan’s population was around 83 million, and this number continued to grow steadily over the next few decades as the country rebuilt and modernized. Urbanization, industrial expansion, and economic prosperity during the 1950s to 1970s provided the social and economic foundation for a growing population. During this time, Japan transformed into one of the world’s leading economies, and its population growth reflected this upward trajectory.
By the 1980s, however, the fertility rate had begun to decline significantly. Changes in lifestyle, the growing presence of women in the workforce, delayed marriage, and urban housing constraints contributed to smaller family sizes. Despite the falling birth rate, Japan’s population continued to grow slowly, reaching a peak of around 128 million in 2008. This plateau marked the beginning of a new demographic era. The aging of the baby boomer generation also began to exert pressure on the labor force and social welfare systems, as the number of elderly people started to rise sharply.
Since 2008, Japan’s population has been on a continuous downward trajectory. Natural population decline—where deaths outnumber births—has become the norm. Each year, Japan loses hundreds of thousands of people due to this demographic imbalance. Immigration has not been sufficient to offset the decline, as Japan has traditionally maintained strict immigration policies. In recent years, while more foreign workers and residents have been allowed entry, their numbers remain relatively small compared to the scale of overall population loss.
Today, Japan faces a complex demographic challenge marked by a shrinking and aging population. The birth rate remains well below the replacement level of 2.1, hovering around 1.3. Life expectancy continues to rise, contributing to one of the highest median ages in the world. This shift affects nearly every aspect of Japanese society—from labor shortages and economic stagnation to pension sustainability and rural depopulation. While the government has introduced policies to encourage childbirth, improve childcare access, and attract foreign labor, the structural nature of the decline makes rapid reversal unlikely. The demographic trends Japan is experiencing today are seen as a possible preview of what many developed nations may face in the coming decades.
Source: TBS
