Age composition in 2026:
| Réunion | Zambia | |
|---|---|---|
| Young Population | 20.15%178,632 | 40.50%9,121,144 |
| Working Age Population | 62.99%558,304 | 57.44%12,937,365 |
| Elderly Population | 16.85%149,358 | 2.06%463,403 |
In 2026, the median age is 39.4 years in Réunion and 19.2 years in Zambia.Réunion already reached Zambia’s current median age in 1950, about 76 years ahead in population aging.
The total population of Réunion peaks in 2049 at 941,556.The total population of Zambia is projected to keep growing until 2100, reaching 64,473,919.
By 2050, the dependency ratio of Réunion will be 79.5%, and 26.73% of the population will be elderly.By 2050, the dependency ratio of Zambia will be 58.2%, and 4.80% of the population will be elderly.
| Réunion | Zambia | ||
|---|---|---|---|
| Demographic dividend (dependency ratio below 50%) | 2002–2003 | None between 1950 and 2100 | |
| Aging society (65+ reaches 7%) | 2000 | 2066 66 years later | |
| Aged society (65+ reaches 14%) | 2022 | 2099 77 years later | |
| Super-aged society (65+ reaches 20%) | 2031 | Not reached by 2100 |