The U.S. Census Bureau’s 2025 report indicates a global demographic shift, with adults aged 65 and over outnumbering children under 5 for the first time in human history. This trend, driven by declining birth rates and an aging population, presents challenges for individuals in financing longer lifespans and for policymakers in budgeting for increased demand for services over the coming decades. Despite concerns from U.S. policymakers and private-market voices, the United States is projected to become relatively younger compared to the rest of the world over the next few decades, falling from the 48th-oldest country in 2025 to the 110th by 2060 as other regions age more rapidly [https://www.yahoo.com/news/us/articles/world-now-more-people-110930957.html].

The report highlights significant regional variations, with Japan currently having the world’s oldest population at 29.7% aged 65 and older, followed by Germany and Greece at around 25%. By 2060, South Korea and Taiwan are projected to surpass Japan, with 41% and approximately 40% of their populations, respectively, aged 65 and over. Europe is expected to remain the world’s oldest region, with the percentage of its population aged 65 and over increasing from 21% to 30.8% between 2025 and 2060. Meanwhile, 160 countries, primarily in Africa, Asia, Latin America, and the Caribbean, are anticipated to see a quadrupling of their populations aged 85 and over during the same period. The U.S., while facing macroeconomic factors such as budgeting and productivity, must also contend with the reality that longer lifespans do not necessarily equate to more healthy years, as evidenced by a decrease in the proportion of years lived in full health after age 60 and a high prevalence of chronic health issues among older adults.

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