Fertility in Tonga, 2024
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2024
Total fertility rate: 3.10
The total fertility rate of Tonga is projected at 3.10 children per woman in 2024 — above the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (169 per 1,000 women in that age group), and the average mother would be 29.9 years old. In total, 2,400 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).
Key indicators, 2024
Total fertility rate
3.10
Births
2,400
Births per 1,000 people
23.0
Mean age of mothers
29.9
Births to mothers aged 15–19
6.0%
Net reproduction rate
1.45
Boys per 100 girls at birth
108.1
Population
104,176
The net reproduction rate counts only daughters who survive to their mothers' age: below 1, each generation of women is smaller than the one before.
Fertility by age of mother, 2024
| Mother's age | Births per 1,000 women | Share of total fertility | Births |
|---|---|---|---|
| 10-14 | 0.3 | 0.1% | 1 |
| 15-19 | 25.1 | 4.1% | 145 |
| 20-24 | 124.5 | 20.1% | 631 |
| 25-29 | 169.4 | 27.4% | 653 |
| 30-34 | 163.8 | 26.5% | 539 |
| 35-39 | 94.4 | 15.3% | 306 |
| 40-44 | 36.9 | 6.0% | 113 |
| 45-49 | 3.6 | 0.6% | 10 |
| 50-54 | 0.1 | 0.0% | 0 |
Fertility in Tonga by year