Share of births that are twins in Australia
Australia: Share of births that are twins was 1.4% in 2020. ▲ Rising
Share of births that are twins in Australia, 1907–2020
Source: Human Multiple Births Database (2024) – processed by Our World in Data. Measured in %.
Analysis
In 2020, share of births that are twins in Australia stood at 1.4%.
The figure is down 3.1% on the previous year and down 6.0% over ten years.
Over the whole period, share of births that are twins in Australia peaked at 1.6% in 2002 and was at its lowest, 0.9%, in 1977.
That places Australia 12th out of 23 countries with data for 2020, putting it in the middle of the range.
The long-run direction has been consistently rising across the 113 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1900s | 1.0% | 0.9% | 1.0% | 3 |
| 1910s | 1.1% | 1.0% | 1.1% | 10 |
| 1920s | 1.1% | 1.0% | 1.1% | 10 |
| 1930s | 1.1% | 1.0% | 1.1% | 10 |
| 1940s | 1.1% | 1.0% | 1.2% | 10 |
| 1950s | 1.2% | 1.1% | 1.2% | 10 |
| 1960s | 1.1% | 1.0% | 1.1% | 10 |
| 1970s | 1.0% | 0.9% | 1.1% | 9 |
| 1980s | 1.1% | 1.0% | 1.2% | 10 |
| 1990s | 1.3% | 1.2% | 1.5% | 10 |
| 2000s | 1.6% | 1.5% | 1.6% | 10 |
| 2010s | 1.5% | 1.4% | 1.5% | 10 |
| 2020s | 1.4% | 1.4% | 1.4% | 1 |
Countries ranked near Australia
More reference data data for Australia
- Spring temperature anomalies -0.4864 °C (2026)
- Summer temperature anomalies 0.8615 °C (2026)
- Temperature anomalies by month 1.13 °C (2026)
- Universal right to vote in practice 2 (2025)
- Autumn temperature anomalies 0.0026 °C (2025)
- Winter temperature anomalies 0.4713 °C (2025)
- Consumer price index 148.46 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Competitive elections 1 (2025)
- Men's universal right to vote 1 (2025)
Frequently asked questions
- What is share of births that are twins in Australia?
- Share of births that are twins in Australia was 1.4% in 2020, according to Human Multiple Births Database (2024) – processed by Our World in Data.
- What is the highest share of births that are twins recorded in Australia?
- The highest recorded value was 1.6% in 2002.
- What is the lowest share of births that are twins recorded in Australia?
- The lowest recorded value was 0.9% in 1977.
- How does Australia rank for share of births that are twins?
- Australia ranks 12th out of 23 countries with data for 2020.
- Is share of births that are twins rising or falling in Australia?
- Over the last ten years it is down 6.0%. The long-run trend across the full record is rising.
- Where does this Australia data come from?
- The figures come from Human Multiple Births Database (2024) – processed by Our World in Data, published as part of Share of births that are twins. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 113 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
The number of twin deliveries per 100 deliveries.