The number of centenarians worldwide in 2026 reflects a steady and ongoing shift in global population ageing. More people are now reaching 100 years of age than in any previous generation, and the distribution across countries is uneven. Some nations show very large counts due to long life expectancy and ageing populations, while others are still in earlier stages of demographic transition. Japan remains the global leader by a significant margin, followed by the United States, China, India, and several European countries. These figures are shaped by healthcare systems, nutrition, lifestyle habits, and long-term population structures.
According to the World Population Review 2026, centenarians by country 2026 data show a steady global rise in people reaching 100 years of age, reflecting improvements in healthcare, nutrition, and overall life expectancy patterns.
