Bulgaria vs Portugal: Share of births outside marriage

Bulgaria
59.7
in 2023
Portugal
59.5
in 2023
Bulgaria rank
7th
Portugal rank
8th

Share of births outside marriage over time

  • Bulgaria
  • Portugal
0204060196019912023

How they compare

Bulgaria currently reports 59.7 against 59.5 in Portugal, a difference of 0.2.

The two have swapped places 5 times across 64 shared years of data; in 1960 it was Portugal ahead.

Bulgaria ranks 7th and Portugal ranks 8th of 43 countries.

Across the 7 decades both report, Bulgaria averaged higher in 6 and Portugal in 1.

Head to head by decade

Decade Bulgaria Portugal Difference Ahead
1960s 8.88 8.05 0.83 Bulgaria
1970s 9.74 7.36 2.38 Bulgaria
1980s 11.11 11.74 0.63 Portugal
1990s 24.34 17.87 6.47 Bulgaria
2000s 47.25 29.77 17.48 Bulgaria
2010s 57.85 49.77 8.08 Bulgaria
2020s 59.77 59.4 0.3657 Bulgaria

Averages of every year both report within each decade.

Frequently asked questions

Which has higher share of births outside marriage, Bulgaria or Portugal?
Bulgaria, at 59.7 against 59.5 in Portugal as of 2023.
What is the difference in share of births outside marriage between Bulgaria and Portugal?
0.2, with Bulgaria ahead.
How many years of comparable data are there for Bulgaria and Portugal?
64 years are reported by both, from 1960 to 2023.
How do Bulgaria and Portugal rank globally for share of births outside marriage?
Bulgaria ranks 7th and Portugal ranks 8th of 43 countries.
Where does this data come from?
Our World in Data, published as Share of births outside marriage. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Bulgaria vs Portugal: Share of births outside marriage. Statizoid, drawing on Our World in Data. Retrieved 12 November 2026, from https://population.statizoid.com/compare/share-of-births-outside-marriage/bulgaria/portugal/

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About this data

Indicator
Share of births outside marriage
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
43 places, 2,270 data points, 1960–2024
Last refreshed