Japan vs Thailand: Number of people living in the capital city
Japan
24.07 million people
in 2100
Thailand
17.56 million people
in 2100
Japan rank
6th
Thailand rank
8th
Number of people living in the capital city over time
- Japan
- Thailand
How they compare
Japan currently reports 24.07 million people against 17.56 million people in Thailand, a difference of 6.51 million people.
That makes Japan's figure about 1.4 times Thailand's.
Across all 17 years both countries report, Japan has been ahead every year.
Japan ranks 6th and Thailand ranks 8th of 191 countries.
Japan has averaged higher in every one of the 9 decades both report.
Head to head by decade
| Decade | Japan | Thailand | Difference | Ahead |
|---|---|---|---|---|
| 2020s | 33.56 million people | 17.72 million people | 15.84 million people | Japan |
| 2030s | 32.76 million people | 19.26 million people | 13.50 million people | Japan |
| 2040s | 31.58 million people | 20.18 million people | 11.40 million people | Japan |
| 2050s | 30.33 million people | 20.42 million people | 9.91 million people | Japan |
| 2060s | 28.79 million people | 20.11 million people | 8.68 million people | Japan |
| 2070s | 27.06 million people | 19.53 million people | 7.52 million people | Japan |
| 2080s | 25.82 million people | 18.88 million people | 6.94 million people | Japan |
| 2090s | 24.84 million people | 18.13 million people | 6.71 million people | Japan |
| 2100s | 24.07 million people | 17.56 million people | 6.51 million people | Japan |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher number of people living in the capital city, Japan or Thailand?
- Japan, at 24.07 million people against 17.56 million people in Thailand as of 2100.
- What is the difference in number of people living in the capital city between Japan and Thailand?
- 6.51 million people, with Japan ahead.
- How many years of comparable data are there for Japan and Thailand?
- 17 years are reported by both, from 2020 to 2100.
- How do Japan and Thailand rank globally for number of people living in the capital city?
- Japan ranks 6th and Thailand ranks 8th of 191 countries.
- Where does this data come from?
- European Commission, Joint Research Centre (JRC) (2025) – with minor processing by Our World in Data, published as Number of people living in the capital city. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Projected total number of people living in the country's capital city. City boundaries are defined using a consistent global approach based on satellite imagery and population data.