Age composition in 2026:
| Kiribati | Papua New Guinea | |
|---|---|---|
| Young Population | 33.96%47,018 | 32.80%3,590,813 |
| Working Age Population | 61.50%85,148 | 63.48%6,949,906 |
| Elderly Population | 4.54%6,290 | 3.72%407,133 |
In 2026, the median age is 24.0 years in Kiribati and 24.0 years in Papua New Guinea.
The total population of Kiribati peaks in 2099 at 222,652.The total population of Papua New Guinea is projected to keep growing until 2100, reaching 18,640,539.
By 2050, the dependency ratio of Kiribati will be 53.5%, and 7.44% of the population will be elderly.By 2050, the dependency ratio of Papua New Guinea will be 50.2%, and 7.35% of the population will be elderly.
| Kiribati | Papua New Guinea | ||
|---|---|---|---|
| Demographic dividend (dependency ratio below 50%) | None between 1950 and 2100 | 2057โ2080 | |
| Aging society (65+ reaches 7%) | 1950 or earlier | 2048 | |
| Aged society (65+ reaches 14%) | 2090 | 2091 1 years later | |
| Super-aged society (65+ reaches 20%) | Not reached by 2100 | Not reached by 2100 |