Fertility in Tonga, 2045
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2045
Total fertility rate: 2.54
The total fertility rate of Tonga is projected at 2.54 children per woman in 2045 — above the replacement level of about 2.1. Births are projected to be most frequent among women aged 30-34 (139 per 1,000 women in that age group), and the average mother would be 29.5 years old. In total, 2,145 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).
Key indicators, 2045
Total fertility rate
2.54
Births
2,145
Births per 1,000 people
20.6
Mean age of mothers
29.5
Births to mothers aged 15–19
5.3%
Net reproduction rate
1.20
Boys per 100 girls at birth
108.1
Population
103,930
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, 2045
| Mother's age | Births per 1,000 women | Share of total fertility | Births |
|---|---|---|---|
| 10-14 | 0.3 | 0.1% | 1 |
| 15-19 | 25.1 | 4.9% | 113 |
| 20-24 | 109.4 | 21.4% | 481 |
| 25-29 | 136.8 | 26.8% | 582 |
| 30-34 | 138.7 | 27.2% | 621 |
| 35-39 | 70.8 | 13.9% | 258 |
| 40-44 | 27.7 | 5.4% | 85 |
| 45-49 | 1.9 | 0.4% | 4 |
| 50-54 | 0.1 | 0.0% | 0 |
Fertility in Tonga by year