Fertility in Zambia, 2021
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2021
Total fertility rate: 4.25
The total fertility rate of Zambia was 4.25 children per woman in 2021 — above the replacement level of about 2.1. Births were most frequent among women aged 20-24 (190 per 1,000 women in that age group), and the average mother was 28.5 years old. In total, 665,154 babies were born. Source: United Nations, World Population Prospects 2024.
Key indicators, 2021
Total fertility rate
4.25
Births
665,154
Births per 1,000 people
33.9
Mean age of mothers
28.5
Births to mothers aged 15–19
19.4%
Net reproduction rate
1.93
Boys per 100 girls at birth
101.1
Population
19,603,607
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 | 2.9 | 0.3% | 3,673 |
| 15-19 | 118.7 | 14.0% | 129,185 |
| 20-24 | 189.7 | 22.3% | 175,442 |
| 25-29 | 183.8 | 21.6% | 144,990 |
| 30-34 | 165.3 | 19.5% | 112,214 |
| 35-39 | 121.4 | 14.3% | 69,375 |
| 40-44 | 56.9 | 6.7% | 26,420 |
| 45-49 | 10.4 | 1.2% | 3,765 |
| 50-54 | 0.3 | 0.0% | 91 |
Fertility in Zambia by year