Japan’s population continues to decline as the country faces one of the world’s fastest-aging societies and falling birth rates.

Yes, the figures are largely accurate. Japan’s population peaked at around 128.1 million in 2008 and has steadily declined over the years. Current 2026 estimates place the population at approximately 122.4 million people.

Experts say the decline is mainly driven by:

low birth rates

an aging population

fewer marriages

rising living costs

shrinking workforce numbers

Japan is now considered one of the fastest-aging societies in the world, with nearly one-third of its population expected to be over 65 in the coming years.

The demographic crisis has sparked debates over immigration, automation, AI, and economic sustainability as Japan attempts to maintain growth despite a shrinking population.

Disclaimer:

Population figures are based on United Nations estimates and demographic databases. Exact numbers may vary slightly depending on the reporting source and methodology.