Age composition in 2026:
| United States of America | United Kingdom | |
|---|---|---|
| Young Population | 16.91%59,004,722 | 16.72%11,693,284 |
| Working Age Population | 64.26%224,274,040 | 63.34%44,295,443 |
| Elderly Population | 18.84%65,756,722 | 19.94%13,942,801 |
In 2026, the median age is 39.7 years in United States of America and 41.2 years in United Kingdom.United Kingdom already reached United States of Americaโs current median age in 2014, about 12 years ahead in population aging.
The total population of United States of America is projected to keep growing until 2100, reaching 421,278,889.The total population of United Kingdom peaks in 2072 at 76,068,380.
By 2050, the dependency ratio of United States of America will be 64.0%, and 23.11% of the population will be elderly.By 2050, the dependency ratio of United Kingdom will be 65.9%, and 24.68% of the population will be elderly.
| United States of America | United Kingdom | ||
|---|---|---|---|
| Demographic dividend (dependency ratio below 50%) | 1982โ1987 2001โ2013 |
1950 | |
| Aging society (65+ reaches 7%) | 1950 or earlier | 1950 or earlier | |
| Aged society (65+ reaches 14%) | 2014 39 years later | 1975 | |
| Super-aged society (65+ reaches 20%) | 2029 2 years later | 2027 |