Fertility in Thailand, 2021
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2021
Total fertility rate: 1.23
The total fertility rate of Thailand was 1.23 children per woman in 2021 — below the replacement level of about 2.1. Births were most frequent among women aged 25-29 (66 per 1,000 women in that age group), and the average mother was 28.3 years old. In total, 612,870 babies were born. Source: United Nations, World Population Prospects 2024.
Key indicators, 2021
Total fertility rate
1.23
Births
612,870
Births per 1,000 people
8.5
Mean age of mothers
28.3
Births to mothers aged 15–19
9.9%
Net reproduction rate
0.59
Boys per 100 girls at birth
106.4
Population
71,727,332
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, 2021
| Mother's age | Births per 1,000 women | Share of total fertility | Births |
|---|---|---|---|
| 10-14 | 0.8 | 0.3% | 1,650 |
| 15-19 | 27.5 | 11.1% | 60,377 |
| 20-24 | 55.2 | 22.3% | 131,441 |
| 25-29 | 65.6 | 26.5% | 166,907 |
| 30-34 | 56.6 | 22.9% | 142,626 |
| 35-39 | 32.7 | 13.2% | 85,950 |
| 40-44 | 8.5 | 3.4% | 23,191 |
| 45-49 | 0.3 | 0.1% | 729 |
| 50-54 | 0.0 | 0.0% | 0 |
Fertility in Thailand by year