Japan vs Nigeria: Population, Persons for countries / Index for country groups
Japan
119.16 million
in 2031
Nigeria
269.20 million
in 2031
Japan rank
4th
Nigeria rank
2nd
Population, Persons for countries / Index for country groups over time
- Japan
- Nigeria
How they compare
Nigeria currently reports 269.20 million against 119.16 million in Japan, a difference of 150.05 million.
That makes Nigeria's figure about 2.3 times Japan's.
The two have swapped places 1 time across 52 shared years of data; in 1980 it was Japan ahead.
Japan ranks 4th and Nigeria ranks 2nd of 26 countries.
Across the 6 decades both report, Japan averaged higher in 2 and Nigeria in 4.
Head to head by decade
| Decade | Japan | Nigeria | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 120.20 million | 82.77 million | 37.43 million | Japan |
| 1990s | 125.17 million | 106.95 million | 18.23 million | Japan |
| 2000s | 127.52 million | 142.69 million | 15.17 million | Nigeria |
| 2010s | 127.08 million | 188.20 million | 61.11 million | Nigeria |
| 2020s | 123.47 million | 235.52 million | 112.05 million | Nigeria |
| 2030s | 119.53 million | 266.43 million | 146.90 million | Nigeria |
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 Nigeria?
- Nigeria, at 269.20 million against 119.16 million in Japan as of 2031.
- What is the difference in population, persons for countries / index for country groups between Japan and Nigeria?
- 150.05 million, with Nigeria ahead.
- How many years of comparable data are there for Japan and Nigeria?
- 52 years are reported by both, from 1980 to 2031.
- How do Japan and Nigeria rank globally for population, persons for countries / index for country groups?
- Japan ranks 4th and Nigeria ranks 2nd 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.