Iran vs Nigeria: Population by age group
Iran
7.17 million people
in 2023
Nigeria
6.90 million people
in 2023
Iran rank
22nd
Nigeria rank
24th
Population by age group over time
- Iran
- Nigeria
How they compare
Iran currently reports 7.17 million people against 6.90 million people in Nigeria, a difference of 271,850 people.
The two have swapped places 1 time across 74 shared years of data; in 1950 it was Nigeria ahead.
Iran ranks 22nd and Nigeria ranks 24th of 236 countries.
Across the 8 decades both report, Iran averaged higher in 1 and Nigeria in 7.
Head to head by decade
| Decade | Iran | Nigeria | Difference | Ahead |
|---|---|---|---|---|
| 1950s | 881,016 people | 1.29 million people | 405,118 people | Nigeria |
| 1960s | 921,042 people | 1.66 million people | 742,775 people | Nigeria |
| 1970s | 1.12 million people | 2.03 million people | 912,677 people | Nigeria |
| 1980s | 1.49 million people | 2.65 million people | 1.15 million people | Nigeria |
| 1990s | 2.26 million people | 3.39 million people | 1.13 million people | Nigeria |
| 2000s | 3.31 million people | 4.33 million people | 1.02 million people | Nigeria |
| 2010s | 4.93 million people | 5.62 million people | 687,446 people | Nigeria |
| 2020s | 6.72 million people | 6.63 million people | 91,608 people | Iran |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher population by age group, Iran or Nigeria?
- Iran, at 7.17 million people against 6.90 million people in Nigeria as of 2023.
- What is the difference in population by age group between Iran and Nigeria?
- 271,850 people, with Iran ahead.
- How many years of comparable data are there for Iran and Nigeria?
- 74 years are reported by both, from 1950 to 2023.
- How do Iran and Nigeria rank globally for population by age group?
- Iran ranks 22nd and Nigeria ranks 24th of 236 countries.
- Where does this data come from?
- UN, World Population Prospects (2024) – processed by Our World in Data, published as Population by age group. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
The total population, measured on 1 July of the year shown. This only includes people aged 65+.