Japan Population Records Steepest Five-Year Drop in 2025 Census

Japan's Population Drops by Record 3.09 M.: 2025 Census

Japan's population fell by a record 3.1 million over five years, reaching 123 million as of October 2025, with the decline rate accelerating from 0.7% to 2.5% — the sharpest drop since the census began in 1920. For tech leaders, the data signals a structural compression of the domestic workforce that will intensify competition for engineering talent, accelerate automation investment, and pressure enterprise software vendors reliant on Japan's large-enterprise market.