Czechia vs New Zealand: Share of children who were born outside of marriage
Czechia
48.5%
in 2020
New Zealand
48.7%
in 2021
Czechia rank
17th
New Zealand rank
16th
Share of children who were born outside of marriage over time
- Czechia
- New Zealand
How they compare
New Zealand currently reports 48.7% against 48.5% in Czechia, a difference of 0.2%.
The two have swapped places 2 times across 61 shared years of data; in 1960 it was Czechia ahead.
Czechia ranks 17th and New Zealand ranks 16th of 42 countries.
Across the 7 decades both report, Czechia averaged higher in 1 and New Zealand in 6.
Head to head by decade
| Decade | Czechia | New Zealand | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 5.0% | 9.8% | 4.8% | New Zealand |
| 1970s | 4.8% | 16.7% | 11.9% | New Zealand |
| 1980s | 6.9% | 25.9% | 19.0% | New Zealand |
| 1990s | 14.6% | 39.3% | 24.6% | New Zealand |
| 2000s | 30.4% | 45.6% | 15.1% | New Zealand |
| 2010s | 45.9% | 47.4% | 1.4% | New Zealand |
| 2020s | 48.5% | 48.3% | 0.2% | Czechia |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of children who were born outside of marriage, Czechia or New Zealand?
- New Zealand, at 48.7% against 48.5% in Czechia as of 2021.
- What is the difference in share of children who were born outside of marriage between Czechia and New Zealand?
- 0.2%, with New Zealand ahead.
- How many years of comparable data are there for Czechia and New Zealand?
- 61 years are reported by both, from 1960 to 2020.
- How do Czechia and New Zealand rank globally for share of children who were born outside of marriage?
- Czechia ranks 17th and New Zealand ranks 16th of 42 countries.
- Where does this data come from?
- OECD (2025); OECD (2024) – with minor processing by Our World in Data, published as Share of children who were born outside of marriage. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Share of all children born to mothers who were not married at the time of birth.