Iran, Islamic Republic of vs Spain: Population, Persons for countries / Index for country groups

Iran, Islamic Republic of
92.46 million
in 2031
Spain
52.28 million
in 2031
Iran, Islamic Republic of rank
5th
Spain rank
8th

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

  • Iran, Islamic Republic of
  • Spain
020.0M40.0M60.0M80.0M100.0M198020052031

How they compare

Iran, Islamic Republic of currently reports 92.46 million against 52.28 million in Spain, a difference of 40.18 million.

That makes Iran, Islamic Republic of's figure about 1.8 times Spain's.

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

Iran, Islamic Republic of ranks 5th and Spain ranks 8th of 26 countries.

Iran, Islamic Republic of has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade Iran, Islamic Republic of Spain Difference Ahead
1980s 46.52 million 38.63 million 7.89 million Iran, Islamic Republic of
1990s 58.74 million 39.74 million 19.00 million Iran, Islamic Republic of
2000s 68.63 million 43.66 million 24.97 million Iran, Islamic Republic of
2010s 78.54 million 46.69 million 31.85 million Iran, Islamic Republic of
2020s 86.85 million 49.45 million 37.39 million Iran, Islamic Republic of
2030s 92.00 million 52.14 million 39.86 million Iran, Islamic Republic of

Averages of every year both report within each decade.

Frequently asked questions

Which has higher population, persons for countries / index for country groups, Iran, Islamic Republic of or Spain?
Iran, Islamic Republic of, at 92.46 million against 52.28 million in Spain as of 2031.
What is the difference in population, persons for countries / index for country groups between Iran, Islamic Republic of and Spain?
40.18 million, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Spain?
52 years are reported by both, from 1980 to 2031.
How do Iran, Islamic Republic of and Spain rank globally for population, persons for countries / index for country groups?
Iran, Islamic Republic of ranks 5th and Spain ranks 8th 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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Iran, Islamic Republic of vs Spain: Population, Persons for countries / Index for country groups. Statizoid, drawing on International Monetary Fund. Retrieved 25 August 2026, from https://population.statizoid.com/compare/population-persons-for-countries-index-for-country-groups-9-26-2025/iran-islamic-rep/spain/

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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.