Which has higher population ages 40-44, male, Iran or Nigeria?

Nigeria, at 5.71 million against 4.42 million in Iran as of 2025.

What is the difference in population ages 40-44, male between Iran and Nigeria?

1.29 million, with Nigeria ahead.

How many years of comparable data are there for Iran and Nigeria?

66 years are reported by both, from 1960 to 2025.

Where does this data come from?

World Bank staff estimates using the World Bank's total population and age/sex distributions of the United Nations Population Division's World Population Prospects, published as Population ages 40-44, male. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran vs Nigeria: Population ages 40-44, male

Iran

4.42 million

in 2025

Nigeria

5.71 million

in 2025

Iran rank

10th

Nigeria rank

8th

Population ages 40-44, male over time

Iran
Nigeria

How they compare

Nigeria currently reports 5.71 million against 4.42 million in Iran, a difference of 1.29 million.

That makes Nigeria's figure about 1.3 times Iran's.

Across all 66 years both countries report, Nigeria has been ahead every year.

Iran ranks 10th and Nigeria ranks 8th of 217 countries.

Nigeria has averaged higher in every one of the 7 decades both report.

Head to head by decade

Decade	Iran	Nigeria	Difference	Ahead
1960s	621,184	1.17 million	550,837	Nigeria
1970s	796,388	1.45 million	652,697	Nigeria
1980s	1.01 million	1.86 million	846,102	Nigeria
1990s	1.60 million	2.23 million	638,299	Nigeria
2000s	2.12 million	2.95 million	827,681	Nigeria
2010s	2.86 million	4.13 million	1.27 million	Nigeria
2020s	3.94 million	5.41 million	1.46 million	Nigeria

Averages of every year both report within each decade.

Frequently asked questions

Which has higher population ages 40-44, male, Iran or Nigeria?: Nigeria, at 5.71 million against 4.42 million in Iran as of 2025.
What is the difference in population ages 40-44, male between Iran and Nigeria?: 1.29 million, with Nigeria ahead.
How many years of comparable data are there for Iran and Nigeria?: 66 years are reported by both, from 1960 to 2025.
How do Iran and Nigeria rank globally for population ages 40-44, male?: Iran ranks 10th and Nigeria ranks 8th of 217 countries.
Where does this data come from?: World Bank staff estimates using the World Bank's total population and age/sex distributions of the United Nations Population Division's World Population Prospects, published as Population ages 40-44, male. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran vs Nigeria: Population ages 40-44, male. Statizoid, drawing on World Bank staff estimates using the World Bank's total population and age/sex distributions of the United Nations Population Division's World Population Prospects. Retrieved 02 September 2026, from https://health.statizoid.com/compare/population-ages-40-44-male/iran-islamic-rep/nigeria/

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About this data

Indicator: Population ages 40-44, male
Source: World Bank staff estimates using the World Bank's total population and age/sex distributions of the United Nations Population Division's World Population Prospects
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 262 places, 17,262 data points, 1960–2025
Last refreshed: 20 August 2026

Male population between the ages 40 to 44.