Iran vs Japan: Population
Iran
80.05 million people
in 2100
Japan
76.85 million people
in 2100
Iran rank
30th
Japan rank
32nd
Population over time
- Iran
- Japan
How they compare
Iran currently reports 80.05 million people against 76.85 million people in Japan, a difference of 3.20 million people.
The two have swapped places 1 time across 77 shared years of data; in 2024 it was Japan ahead.
Iran ranks 30th and Japan ranks 32nd of 236 countries.
Across the 9 decades both report, Iran averaged higher in 5 and Japan in 4.
Head to head by decade
| Decade | Iran | Japan | Difference | Ahead |
|---|---|---|---|---|
| 2020s | 93.40 million people | 122.06 million people | 28.66 million people | Japan |
| 2030s | 97.42 million people | 116.25 million people | 18.82 million people | Japan |
| 2040s | 100.77 million people | 108.93 million people | 8.16 million people | Japan |
| 2050s | 101.78 million people | 102.03 million people | 258,240 people | Japan |
| 2060s | 99.27 million people | 94.71 million people | 4.56 million people | Iran |
| 2070s | 94.11 million people | 87.76 million people | 6.35 million people | Iran |
| 2080s | 88.26 million people | 82.81 million people | 5.45 million people | Iran |
| 2090s | 82.92 million people | 78.93 million people | 3.98 million people | Iran |
| 2100s | 80.05 million people | 76.85 million people | 3.20 million people | Iran |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher population, Iran or Japan?
- Iran, at 80.05 million people against 76.85 million people in Japan as of 2100.
- What is the difference in population between Iran and Japan?
- 3.20 million people, with Iran ahead.
- How many years of comparable data are there for Iran and Japan?
- 77 years are reported by both, from 2024 to 2100.
- How do Iran and Japan rank globally for population?
- Iran ranks 30th and Japan ranks 32nd of 236 countries.
- Where does this data come from?
- UN WPP (2024) – with major processing by Our World in Data, published as Population. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Population by country, available from 10,000 BCE to 2023, based on data and estimates from different sources.