Countries with relatively young populations today are projected to see the fastest growth in residents aged 65 and older through 2040. Based on World Economic Forum analysis of the UN’s World Population Prospects, this gallery compares projected growth in the population aged 65 and older across 21 selected economies between 2025 and 2040. With a global average increase of 53% and a median age of 30.9 in 2025, rapid demographic aging is transforming societal structures worldwide.
The first figure listed next to each country represents this projected percentage increase, while the second indicates its 2025 median age. Click on to see which nations are leading this unprecedented shift.