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

Iran, Islamic Republic of
92.46 million
in 2031
Thailand
71.10 million
in 2031
Iran, Islamic Republic of rank
5th
Thailand rank
7th

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

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

How they compare

Iran, Islamic Republic of currently reports 92.46 million against 71.10 million in Thailand, a difference of 21.36 million.

That makes Iran, Islamic Republic of's figure about 1.3 times Thailand's.

The two have swapped places 1 time across 52 shared years of data; in 1980 it was Thailand ahead.

Iran, Islamic Republic of ranks 5th and Thailand ranks 7th of 26 countries.

Across the 6 decades both report, Iran, Islamic Republic of averaged higher in 4 and Thailand in 2.

Head to head by decade

Decade Iran, Islamic Republic of Thailand Difference Ahead
1980s 46.52 million 51.58 million 5.06 million Thailand
1990s 58.74 million 59.31 million 574,460 Thailand
2000s 68.63 million 65.67 million 2.96 million Iran, Islamic Republic of
2010s 78.54 million 70.25 million 8.29 million Iran, Islamic Republic of
2020s 86.85 million 71.59 million 15.26 million Iran, Islamic Republic of
2030s 92.00 million 71.16 million 20.84 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 Thailand?
Iran, Islamic Republic of, at 92.46 million against 71.10 million in Thailand as of 2031.
What is the difference in population, persons for countries / index for country groups between Iran, Islamic Republic of and Thailand?
21.36 million, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Thailand?
52 years are reported by both, from 1980 to 2031.
How do Iran, Islamic Republic of and Thailand rank globally for population, persons for countries / index for country groups?
Iran, Islamic Republic of ranks 5th and Thailand ranks 7th 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 Thailand: Population, Persons for countries / Index for country groups. Statizoid, drawing on International Monetary Fund. Retrieved 31 August 2026, from https://population.statizoid.com/compare/population-persons-for-countries-index-for-country-groups-9-26-2025/iran-islamic-rep/thailand/

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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.