Age composition in 2026:
| Samoa | Tonga | |
|---|---|---|
| Young Population | 37.54%82,802 | 34.37%35,504 |
| Working Age Population | 56.23%124,004 | 58.65%60,586 |
| Elderly Population | 6.23%13,735 | 6.99%7,216 |
In 2026, the median age is 20.8 years in Samoa and 22.0 years in Tonga.Tonga already reached Samoaโs current median age in 2004, about 22 years ahead in population aging.
The total population of Samoa is projected to keep growing until 2100, reaching 383,564.The total population of Tonga is projected to keep growing until 2100, reaching 117,879.
By 2050, the dependency ratio of Samoa will be 68.3%, and 8.11% of the population will be elderly.By 2050, the dependency ratio of Tonga will be 64.9%, and 10.66% of the population will be elderly.
| Samoa | Tonga | ||
|---|---|---|---|
| Demographic dividend (dependency ratio below 50%) | None between 1950 and 2100 | 2064โ2070 | |
| Aging society (65+ reaches 7%) | 2031 4 years later | 2027 | |
| Aged society (65+ reaches 14%) | 2087 10 years later | 2077 | |
| Super-aged society (65+ reaches 20%) | Not reached by 2100 | 2094 |