Republic of Korea vs Saudi Arabia: Population, Persons for countries / Index for country groups

Republic of Korea
51.22 million
in 2031
Saudi Arabia
40.55 million
in 2031
Republic of Korea rank
9th
Saudi Arabia rank
10th

Population, Persons for countries / Index for country groups over time

  • Republic of Korea
  • Saudi Arabia
10.0M20.0M30.0M40.0M50.0M198020052031

How they compare

Republic of Korea currently reports 51.22 million against 40.55 million in Saudi Arabia, a difference of 10.68 million.

That makes Republic of Korea's figure about 1.3 times Saudi Arabia's.

Across all 52 years both countries report, Republic of Korea has been ahead every year.

Republic of Korea ranks 9th and Saudi Arabia ranks 10th of 26 countries.

Republic of Korea has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade Republic of Korea Saudi Arabia Difference Ahead
1980s 40.46 million 10.59 million 29.87 million Republic of Korea
1990s 44.82 million 15.79 million 29.04 million Republic of Korea
2000s 48.17 million 20.38 million 27.79 million Republic of Korea
2010s 50.78 million 28.32 million 22.46 million Republic of Korea
2020s 51.64 million 35.09 million 16.55 million Republic of Korea
2030s 51.27 million 40.15 million 11.12 million Republic of Korea

Averages of every year both report within each decade.

Frequently asked questions

Which has higher population, persons for countries / index for country groups, Republic of Korea or Saudi Arabia?
Republic of Korea, at 51.22 million against 40.55 million in Saudi Arabia as of 2031.
What is the difference in population, persons for countries / index for country groups between Republic of Korea and Saudi Arabia?
10.68 million, with Republic of Korea ahead.
How many years of comparable data are there for Republic of Korea and Saudi Arabia?
52 years are reported by both, from 1980 to 2031.
How do Republic of Korea and Saudi Arabia rank globally for population, persons for countries / index for country groups?
Republic of Korea ranks 9th and Saudi Arabia ranks 10th of 26 countries.
Where does this data come from?
International Monetary Fund, published as Population, Persons for countries / Index for country groups (9/26/2025). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Republic of Korea vs Saudi Arabia: Population, Persons for countries / Index for country groups. Statizoid, drawing on International Monetary Fund. Retrieved 01 September 2026, from https://population.statizoid.com/compare/population-persons-for-countries-index-for-country-groups-9-26-2025/korea-rep/saudi-arabia/

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About this data

Indicator
Population, Persons for countries / Index for country groups (9/26/2025)
Source
International Monetary Fund
Licence
IMF Terms and Conditions (attribution required)
Coverage
26 places, 1,287 data points, 1980–2031
Last refreshed

The World Economic Outlook (WEO) database is created during the biannual WEO exercise, which begins in January and June of each year and results in the April and September/October WEO publication. Selected series from the publication are available in a database format.