Age composition in 2026:
| Madagascar | Sierra Leone | |
|---|---|---|
| Young Population | 38.64%12,953,199 | 37.21%3,347,406 |
| Working Age Population | 57.82%19,382,989 | 59.46%5,349,766 |
| Elderly Population | 3.54%1,185,867 | 3.33%299,577 |
In 2026, the median age is 20.4 years in Madagascar and 20.9 years in Sierra Leone.Sierra Leone already reached Madagascarโs current median age in 1950, about 76 years ahead in population aging.
The total population of Madagascar is projected to keep growing until 2100, reaching 85,341,145.The total population of Sierra Leone peaks in 2092 at 16,009,634.
By 2050, the dependency ratio of Madagascar will be 57.9%, and 5.36% of the population will be elderly.By 2050, the dependency ratio of Sierra Leone will be 50.8%, and 5.50% of the population will be elderly.
| Madagascar | Sierra Leone | ||
|---|---|---|---|
| Demographic dividend (dependency ratio below 50%) | None between 1950 and 2100 | 2053โ2085 | |
| Aging society (65+ reaches 7%) | 2063 3 years later | 2060 | |
| Aged society (65+ reaches 14%) | Not reached by 2100 | 2092 | |
| Super-aged society (65+ reaches 20%) | Not reached by 2100 | Not reached by 2100 |