Fertility in United Kingdom, 2021
United Kingdom
Afghanistan
Africa
Albania
Algeria
Angola
Antigua and Barbuda
Argentina
Armenia
Aruba
Asia
Australia
Australia/New Zealand
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Latin America and the Caribbean
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Least developed countries
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Less developed regions
Less developed regions, excluding China
Less developed regions, excluding least developed countries
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Other non-specified areas
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Viet Nam
Western Africa
Western Asia
Western Europe
Western Sahara
World
Yemen
Zambia
Zimbabwe
2021
Total fertility rate: 1.58
The total fertility rate of United Kingdom was 1.58 children per woman in 2021 — below the replacement level of about 2.1. Births were most frequent among women aged 30-34 (105 per 1,000 women in that age group), and the average mother was 30.9 years old. In total, 693,027 babies were born. Source: United Nations, World Population Prospects 2024.
Key indicators, 2021
Total fertility rate
1.58
Births
693,027
Births per 1,000 people
10.2
Mean age of mothers
30.9
Births to mothers aged 15–19
2.3%
Net reproduction rate
0.76
Boys per 100 girls at birth
105.5
Population
67,668,792
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 | 0.0 | 0.0% | 69 |
| 15-19 | 8.6 | 2.7% | 15,700 |
| 20-24 | 43.3 | 13.6% | 86,131 |
| 25-29 | 83.6 | 26.3% | 183,136 |
| 30-34 | 104.8 | 33.0% | 233,157 |
| 35-39 | 61.5 | 19.3% | 140,189 |
| 40-44 | 15.1 | 4.7% | 32,111 |
| 45-49 | 1.2 | 0.4% | 2,514 |
| 50-54 | 0.0 | 0.0% | 19 |
Fertility in United Kingdom by year