Portugal vs Slovenia: Share of children who were born outside of marriage
Portugal
57.9%
in 2020
Slovenia
56.5%
in 2020
Portugal rank
8th
Slovenia rank
9th
Share of children who were born outside of marriage over time
- Portugal
- Slovenia
How they compare
Portugal currently reports 57.9% against 56.5% in Slovenia, a difference of 1.4%.
The two have swapped places 2 times across 61 shared years of data; in 1960 it was Portugal ahead.
Portugal ranks 8th and Slovenia ranks 9th of 42 countries.
Across the 7 decades both report, Portugal averaged higher in 1 and Slovenia in 6.
Head to head by decade
| Decade | Portugal | Slovenia | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 8.1% | 9.2% | 1.1% | Slovenia |
| 1970s | 7.4% | 10.0% | 2.7% | Slovenia |
| 1980s | 11.7% | 18.4% | 6.7% | Slovenia |
| 1990s | 17.9% | 29.9% | 12.0% | Slovenia |
| 2000s | 29.8% | 45.5% | 15.7% | Slovenia |
| 2010s | 49.8% | 57.6% | 7.8% | Slovenia |
| 2020s | 57.9% | 56.5% | 1.4% | Portugal |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of children who were born outside of marriage, Portugal or Slovenia?
- Portugal, at 57.9% against 56.5% in Slovenia as of 2020.
- What is the difference in share of children who were born outside of marriage between Portugal and Slovenia?
- 1.4%, with Portugal ahead.
- How many years of comparable data are there for Portugal and Slovenia?
- 61 years are reported by both, from 1960 to 2020.
- How do Portugal and Slovenia rank globally for share of children who were born outside of marriage?
- Portugal ranks 8th and Slovenia ranks 9th 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.