Iceland vs New Zealand: Share of births that are twins
Iceland
1.2%
in 2020
New Zealand
1.3%
in 2021
Iceland rank
20th
New Zealand rank
17th
Share of births that are twins over time
- Iceland
- New Zealand
How they compare
New Zealand currently reports 1.3% against 1.2% in Iceland, a difference of 0.1%.
That makes New Zealand's figure about 1.1 times Iceland's.
The two have swapped places 21 times across 133 shared years of data; in 1888 it was Iceland ahead.
Iceland ranks 20th and New Zealand ranks 17th of 23 countries.
Across the 15 decades both report, Iceland averaged higher in 9 and New Zealand in 6.
Head to head by decade
| Decade | Iceland | New Zealand | Difference | Ahead |
|---|---|---|---|---|
| 1880s | 1.9% | 0.9% | 1.0% | Iceland |
| 1890s | 1.8% | 1.0% | 0.8% | Iceland |
| 1900s | 1.6% | 1.0% | 0.6% | Iceland |
| 1910s | 1.5% | 1.1% | 0.4% | Iceland |
| 1920s | 1.5% | 1.2% | 0.4% | Iceland |
| 1930s | 1.3% | 1.2% | 0.1% | Iceland |
| 1940s | 1.2% | 1.3% | 0.1% | New Zealand |
| 1950s | 1.0% | 1.3% | 0.3% | New Zealand |
| 1960s | 1.0% | 1.1% | 0.1% | New Zealand |
| 1970s | 0.9% | 1.0% | 0.1% | New Zealand |
| 1980s | 0.9% | 1.1% | 0.1% | New Zealand |
| 1990s | 1.7% | 1.3% | 0.4% | Iceland |
| 2000s | 1.8% | 1.6% | 0.2% | Iceland |
| 2010s | 1.5% | 1.4% | 0.1% | Iceland |
| 2020s | 1.2% | 1.3% | 0.1% | New Zealand |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of births that are twins, Iceland or New Zealand?
- New Zealand, at 1.3% against 1.2% in Iceland as of 2021.
- What is the difference in share of births that are twins between Iceland and New Zealand?
- 0.1%, with New Zealand ahead.
- How many years of comparable data are there for Iceland and New Zealand?
- 133 years are reported by both, from 1888 to 2020.
- How do Iceland and New Zealand rank globally for share of births that are twins?
- Iceland ranks 20th and New Zealand ranks 17th of 23 countries.
- Where does this data come from?
- Human Multiple Births Database (2024) β processed by Our World in Data, published as Share of births that are twins. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Number of twin deliveries per 100 deliveries.