Iran vs Nigeria: Population, Persons for countries / Index for country … 9/26/2025
Iran
92.46 million
in 2031
Nigeria
269.20 million
in 2031
Iran rank
5th
Nigeria rank
2nd
Population, Persons for countries / Index for country … 9/26/2025 over time
- Iran
- Nigeria
How they compare
Nigeria currently reports 269.20 million against 92.46 million in Iran, a difference of 176.74 million.
That makes Nigeria's figure about 2.9 times Iran's.
Across all 52 years both countries report, Nigeria has been ahead every year.
Iran ranks 5th and Nigeria ranks 2nd of 26 countries.
Nigeria has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Iran | Nigeria | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 46.52 million | 82.77 million | 36.25 million | Nigeria |
| 1990s | 58.74 million | 106.95 million | 48.21 million | Nigeria |
| 2000s | 68.63 million | 142.69 million | 74.06 million | Nigeria |
| 2010s | 78.54 million | 188.20 million | 109.65 million | Nigeria |
| 2020s | 86.85 million | 235.52 million | 148.67 million | Nigeria |
| 2030s | 92.00 million | 266.43 million | 174.43 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, Iran or Nigeria?
- Nigeria, at 269.20 million against 92.46 million in Iran as of 2031.
- What is the difference in population, persons for countries / index for country groups between Iran and Nigeria?
- 176.74 million, with Nigeria ahead.
- How many years of comparable data are there for Iran and Nigeria?
- 52 years are reported by both, from 1980 to 2031.
- How do Iran and Nigeria rank globally for population, persons for countries / index for country groups?
- Iran ranks 5th 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.