South Africa vs United Kingdom of Great Britain and Northern Ireland: Historical population data

South Africa
63.10 million Persons
in 2025
United Kingdom of Great Britain and Northern Ireland
69.50 million Persons
in 2025
South Africa rank
13th
United Kingdom of Great Britain and Northern Ireland rank
11th

Historical population data over time

  • South Africa
  • United Kingdom of Great Britain and Northern Ireland
20.0M40.0M60.0M195019872025

How they compare

United Kingdom of Great Britain and Northern Ireland currently reports 69.50 million Persons against 63.10 million Persons in South Africa, a difference of 6.40 million Persons.

That makes United Kingdom of Great Britain and Northern Ireland's figure about 1.1 times South Africa's.

Across all 76 years both countries report, United Kingdom of Great Britain and Northern Ireland has been ahead every year.

South Africa ranks 13th and United Kingdom of Great Britain and Northern Ireland ranks 11th of 43 countries.

United Kingdom of Great Britain and Northern Ireland has averaged higher in every one of the 8 decades both report.

Head to head by decade

Decade South Africa United Kingdom of Great Britain and Northern Ireland Difference Ahead
1950s 14.43 million Persons 50.98 million Persons 36.55 million Persons United Kingdom of Great Britain and Northern Ireland
1960s 18.89 million Persons 54.11 million Persons 35.22 million Persons United Kingdom of Great Britain and Northern Ireland
1970s 25.38 million Persons 56.12 million Persons 30.74 million Persons United Kingdom of Great Britain and Northern Ireland
1980s 34.50 million Persons 56.57 million Persons 22.08 million Persons United Kingdom of Great Britain and Northern Ireland
1990s 44.05 million Persons 57.95 million Persons 13.90 million Persons United Kingdom of Great Britain and Northern Ireland
2000s 48.26 million Persons 60.36 million Persons 12.10 million Persons United Kingdom of Great Britain and Northern Ireland
2010s 55.20 million Persons 64.81 million Persons 9.61 million Persons United Kingdom of Great Britain and Northern Ireland
2020s 61.30 million Persons 68.11 million Persons 6.81 million Persons United Kingdom of Great Britain and Northern Ireland

Averages of every year both report within each decade.

Frequently asked questions

Which has higher historical population data, South Africa or United Kingdom of Great Britain and Northern Ireland?
United Kingdom of Great Britain and Northern Ireland, at 69.50 million Persons against 63.10 million Persons in South Africa as of 2025.
What is the difference in historical population data between South Africa and United Kingdom of Great Britain and Northern Ireland?
6.40 million Persons, with United Kingdom of Great Britain and Northern Ireland ahead.
How many years of comparable data are there for South Africa and United Kingdom of Great Britain and Northern Ireland?
76 years are reported by both, from 1950 to 2025.
How do South Africa and United Kingdom of Great Britain and Northern Ireland rank globally for historical population data?
South Africa ranks 13th and United Kingdom of Great Britain and Northern Ireland ranks 11th of 43 countries.
Where does this data come from?
Organisation for Economic Co-operation and Development, published as Historical population data. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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South Africa vs United Kingdom of Great Britain and Northern Ireland: Historical population data. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 20 August 2026, from https://population.statizoid.com/compare/historical-population-data/south-africa/united-kingdom/

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About this data

Indicator
Historical population data
Unit
Persons
Source
Organisation for Economic Co-operation and Development
Licence
OECD Terms and Conditions (attribution required)
Coverage
56 places, 4,256 data points, 1950–2025
Last refreshed

This dataset presents annual population data from 1961 by sex and five year age groups as well as the share of children, youth, the elderly, old-age and total dependency ratios. The data is available for all member countries as well as for the EU27 and G20 countries, Argentina, Brazil, China, India, Indonesia, Russia, Saudi Arabia, Singapore, South Africa and the World total. The data refer to mid-year estimates of the population. See country details in Historical population metadata.