Japan vs Thailand: Population, Persons for countries / Index for country groups
Japan
119.16 million
in 2031
Thailand
71.10 million
in 2031
Japan rank
4th
Thailand rank
7th
Population, Persons for countries / Index for country groups over time
- Japan
- Thailand
How they compare
Japan currently reports 119.16 million against 71.10 million in Thailand, a difference of 48.05 million.
That makes Japan's figure about 1.7 times Thailand's.
Across all 52 years both countries report, Japan has been ahead every year.
Japan ranks 4th and Thailand ranks 7th of 26 countries.
Japan has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Japan | Thailand | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 120.20 million | 51.58 million | 68.62 million | Japan |
| 1990s | 125.17 million | 59.31 million | 65.86 million | Japan |
| 2000s | 127.52 million | 65.67 million | 61.86 million | Japan |
| 2010s | 127.08 million | 70.25 million | 56.83 million | Japan |
| 2020s | 123.47 million | 71.59 million | 51.88 million | Japan |
| 2030s | 119.53 million | 71.16 million | 48.37 million | Japan |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher population, persons for countries / index for country groups, Japan or Thailand?
- Japan, at 119.16 million against 71.10 million in Thailand as of 2031.
- What is the difference in population, persons for countries / index for country groups between Japan and Thailand?
- 48.05 million, with Japan ahead.
- How many years of comparable data are there for Japan and Thailand?
- 52 years are reported by both, from 1980 to 2031.
- How do Japan and Thailand rank globally for population, persons for countries / index for country groups?
- Japan ranks 4th 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.
Individual pages
About this data
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.