Fertility in Australia, 2045
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2045
Total fertility rate: 1.64
The total fertility rate of Australia is projected at 1.64 children per woman in 2045 — below the replacement level of about 2.1. Births are projected to be most frequent among women aged 30-34 (117 per 1,000 women in that age group), and the average mother would be 31.7 years old. In total, 325,629 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).
Key indicators, 2045
Total fertility rate
1.64
Births
325,629
Births per 1,000 people
10.4
Mean age of mothers
31.7
Births to mothers aged 15–19
1.3%
Net reproduction rate
0.79
Boys per 100 girls at birth
105.4
Population
31,431,123
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 | 0.0 | 0.0% | 24 |
| 15-19 | 5.3 | 1.6% | 4,384 |
| 20-24 | 33.5 | 10.2% | 30,971 |
| 25-29 | 82.3 | 25.1% | 81,122 |
| 30-34 | 116.8 | 35.6% | 119,829 |
| 35-39 | 71.8 | 21.9% | 72,472 |
| 40-44 | 17.1 | 5.2% | 15,410 |
| 45-49 | 1.5 | 0.5% | 1,417 |
| 50-54 | 0.0 | 0.0% | 0 |
Fertility in Australia by year