Share of children who were born outside of marriage in Slovakia
Slovakia: Share of children who were born outside of marriage was 40.7% in 2020. ◆ Volatile
Share of children who were born outside of marriage in Slovakia, 1960–2020
Source: OECD (2025); OECD (2024) – with minor processing by Our World in Data. Measured in %.
Analysis
Slovakia recorded 40.7% for share of children who were born outside of marriage in 2020. That is the highest value across all 61 years on record.
Compared with earlier readings it is up 1.5% on the previous year and up 23.3% over ten years.
Over the whole period, share of children who were born outside of marriage in Slovakia peaked at 40.7% in 2020 and was at its lowest, 4.4%, in 1961.
Slovakia ranks 22nd of 42 countries on this measure, in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Share of children who were born outside of marriage in Slovakia, year by year
| Year | % | Change |
|---|---|---|
| 1960 | 4.7% | — |
| 1961 | 4.4% | -6.4% |
| 1962 | 4.6% | +4.5% |
| 1963 | 4.7% | +2.2% |
| 1964 | 5.0% | +6.4% |
| 1965 | 5.3% | +6.0% |
| 1966 | 5.3% | +0.0% |
| 1967 | 5.7% | +7.5% |
| 1968 | 5.9% | +3.5% |
| 1969 | 6.1% | +3.4% |
| 1970 | 6.2% | +1.6% |
| 1971 | 6.0% | -3.2% |
| 1972 | 5.7% | -5.0% |
| 1973 | 5.1% | -10.5% |
| 1974 | 5.3% | +3.9% |
| 1975 | 5.2% | -1.9% |
| 1976 | 5.1% | -1.9% |
| 1977 | 5.2% | +2.0% |
| 1978 | 5.2% | +0.0% |
| 1979 | 5.4% | +3.8% |
| 1980 | 5.7% | +5.6% |
| 1981 | 5.7% | +0.0% |
| 1982 | 5.9% | +3.5% |
| 1983 | 6.0% | +1.7% |
| 1984 | 6.2% | +3.3% |
| 1985 | 6.6% | +6.5% |
| 1986 | 6.8% | +3.0% |
| 1987 | 7.1% | +4.4% |
| 1988 | 6.8% | -4.2% |
| 1989 | 7.2% | +5.9% |
| 1990 | 7.6% | +5.6% |
| 1991 | 8.9% | +17.1% |
| 1992 | 9.8% | +10.1% |
| 1993 | 10.6% | +8.2% |
| 1994 | 11.7% | +10.4% |
| 1995 | 12.6% | +7.7% |
| 1996 | 14.0% | +11.1% |
| 1997 | 15.1% | +7.9% |
| 1998 | 15.3% | +1.3% |
| 1999 | 16.9% | +10.5% |
| 2000 | 18.3% | +8.3% |
| 2001 | 19.8% | +8.2% |
| 2002 | 21.6% | +9.1% |
| 2003 | 23.3% | +7.9% |
| 2004 | 24.8% | +6.4% |
| 2005 | 26.0% | +4.8% |
| 2006 | 27.5% | +5.8% |
| 2007 | 28.8% | +4.7% |
| 2008 | 30.1% | +4.5% |
| 2009 | 31.6% | +5.0% |
| 2010 | 33.0% | +4.4% |
| 2011 | 34.0% | +3.0% |
| 2012 | 35.4% | +4.1% |
| 2013 | 37.0% | +4.5% |
| 2014 | 38.9% | +5.1% |
| 2015 | 39.2% | +0.8% |
| 2016 | 40.2% | +2.6% |
| 2017 | 40.1% | -0.2% |
| 2018 | 40.0% | -0.2% |
| 2019 | 40.1% | +0.3% |
| 2020 | 40.7% | +1.5% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 5.2% | 4.4% | 6.1% | 10 |
| 1970s | 5.4% | 5.1% | 6.2% | 10 |
| 1980s | 6.4% | 5.7% | 7.2% | 10 |
| 1990s | 12.2% | 7.6% | 16.9% | 10 |
| 2000s | 25.2% | 18.3% | 31.6% | 10 |
| 2010s | 37.8% | 33.0% | 40.2% | 10 |
| 2020s | 40.7% | 40.7% | 40.7% | 1 |
Countries ranked near Slovakia
More population data for Slovakia
- Population regions with projections, annual growth rate -0.6534 % change on previous year (2100)
- Urban and rural population 2050, annual growth rate -0.7735 % change on previous year (2050)
- Population long run with projections, annual growth rate -0.6534 % change on previous year (2100)
- Un population 2024 vs 2022, annual growth rate -0.4772 % change on previous year (2100)
- Projected population under age 5, annual growth rate -0.6992 % change on previous year (2100)
- World population growth -0.7% (2100)
- Population density 71.28 people per km² (2100)
- Number of children under 5, by world region 131,931 people (2100)
- Population growth rate, by level of development -0.7% (2100)
- Number of people living in urban and rural areas, annual growth rate -0.5749 % change on previous year (2025)
Frequently asked questions
- What is share of children who were born outside of marriage in Slovakia?
- Share of children who were born outside of marriage in Slovakia was 40.7% in 2020, according to OECD (2025); OECD (2024) – with minor processing by Our World in Data.
- What is the highest share of children who were born outside of marriage recorded in Slovakia?
- The highest recorded value was 40.7% in 2020.
- What is the lowest share of children who were born outside of marriage recorded in Slovakia?
- The lowest recorded value was 4.4% in 1961.
- How does Slovakia rank for share of children who were born outside of marriage?
- Slovakia ranks 22nd out of 42 countries with data for 2020.
- Is share of children who were born outside of marriage rising or falling in Slovakia?
- Over the last ten years it is up 23.3%. The long-run trend across the full record is volatile.
- Where does this Slovakia data come from?
- The figures come from OECD (2025); OECD (2024) – with minor processing by Our World in Data, published as part of Share of children who were born outside of marriage. Statizoid updates them automatically from the source API.
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About this data
Share of all children born to mothers who were not married at the time of birth.