Fertility in Iceland, 2025
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2025
Total fertility rate: 1.50
The total fertility rate of Iceland is projected at 1.50 children per woman in 2025 — below the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (99 per 1,000 women in that age group), and the average mother would be 31.0 years old. In total, 4,367 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).
Key indicators, 2025
Total fertility rate
1.50
Births
4,367
Births per 1,000 people
11.0
Mean age of mothers
31.0
Births to mothers aged 15–19
0.8%
Net reproduction rate
0.73
Boys per 100 girls at birth
105.9
Population
398,266
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, 2025
| Mother's age | Births per 1,000 women | Share of total fertility | Births |
|---|---|---|---|
| 10-14 | 0.0 | 0.0% | 0 |
| 15-19 | 2.8 | 0.9% | 35 |
| 20-24 | 35.4 | 11.7% | 450 |
| 25-29 | 98.8 | 32.7% | 1,425 |
| 30-34 | 96.9 | 32.1% | 1,523 |
| 35-39 | 53.4 | 17.7% | 745 |
| 40-44 | 13.1 | 4.3% | 168 |
| 45-49 | 1.7 | 0.6% | 21 |
| 50-54 | 0.1 | 0.0% | 1 |
Fertility in Iceland by year