Age composition in 2026:
| United Republic of Tanzania | Kenya | |
|---|---|---|
| Young Population | 42.15%30,584,404 | 35.73%20,949,016 |
| Working Age Population | 54.82%39,776,409 | 61.19%35,879,215 |
| Elderly Population | 3.04%2,202,965 | 3.08%1,808,175 |
In 2026, the median age is 18.6 years in United Republic of Tanzania and 21.3 years in Kenya.Kenya already reached United Republic of Tanzaniaโs current median age in 2015, about 11 years ahead in population aging.
The total population of United Republic of Tanzania is projected to keep growing until 2100, reaching 262,834,719.The total population of Kenya peaks in 2098 at 104,234,505.
By 2050, the dependency ratio of United Republic of Tanzania will be 64.6%, and 4.45% of the population will be elderly.By 2050, the dependency ratio of Kenya will be 51.2%, and 5.71% of the population will be elderly.
| United Republic of Tanzania | Kenya | ||
|---|---|---|---|
| Demographic dividend (dependency ratio below 50%) | None between 1950 and 2100 | 2054โ2074 | |
| Aging society (65+ reaches 7%) | 2070 12 years later | 2058 | |
| Aged society (65+ reaches 14%) | Not reached by 2100 | 2090 | |
| Super-aged society (65+ reaches 20%) | Not reached by 2100 | Not reached by 2100 |