Tonga Population Pyramid 2100
Tonga in 2100
In 2100, Tonga is projected to have a population of 117,870 people. That would be 0.6% more than in 2090 (117,170).
With a projected median age of 41.4 years, Tonga would have a youth dependency ratio of 28.5 and an old-age dependency ratio of 35.0 per 100 people of working age. The pyramid is constrictive: cohorts of children are smaller than those of their parents, reflecting low fertility and an ageing population.
Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.
The fertility rate of Tonga was 3.13 births per woman in 2023, above the 2.1 needed to replace each generation.
Source: World Bank World Development Indicators, latest available year.
Life expectancy at birth was 72.9 years in 2023: 76.4 for women and 69.4 for men.
Source: World Bank World Development Indicators, latest available year.
998 immigrants live in Tonga, 1.0% of the population.
| Fiji | 450 |
| Samoa | 208 |
| India | 169 |
| China | 109 |
| Japan | 62 |
51,894 people born in Tonga live in other countries.
| New Zealand | 29,981 |
| Australia | 19,464 |
| Fiji | 1,389 |
| Guinea | 901 |
| Samoa | 57 |
Source: United Nations International Migrant Stock 2024.
| Country | Population | Median age | Relative size |
|---|---|---|---|
| Tonga | 117,871 | 41.4 | |
| French Polynesia | 186,863 | 58.5 | |
| Samoa | 383,557 | 37.1 |





