Age composition in 2026:
| Japan | Puerto Rico | |
|---|---|---|
| Young Population | 11.05%13,524,677 | 10.88%350,471 |
| Working Age Population | 58.76%71,934,032 | 63.28%2,039,230 |
| Elderly Population | 30.20%36,969,021 | 25.85%832,986 |
In 2026, the median age is 51.2 years in Japan and 47.2 years in Puerto Rico.Japan already reached Puerto Ricoโs current median age in 2016, about 10 years ahead in population aging.
The total population of Japan peaks in 2009 at 128,192,471.The total population of Puerto Rico peaks in 2001 at 3,813,009.
By 2050, the dependency ratio of Japan will be 95.0%, and 37.48% of the population will be elderly.By 2050, the dependency ratio of Puerto Rico will be 81.2%, and 36.96% of the population will be elderly.
| Japan | Puerto Rico | ||
|---|---|---|---|
| Demographic dividend (dependency ratio below 50%) | 1963โ2003 | None between 1950 and 2100 | |
| Aging society (65+ reaches 7%) | 1970 | 1971 1 years later | |
| Aged society (65+ reaches 14%) | 1994 | 2006 12 years later | |
| Super-aged society (65+ reaches 20%) | 2005 | 2018 13 years later |