Which has higher population, age 21, female, Nigeria or United States of America?

United States of America, at 2.26 million against 1.75 million in Nigeria as of 2015.

What is the difference in population, age 21, female between Nigeria and United States of America?

513,010, with United States of America ahead.

How many years of comparable data are there for Nigeria and United States of America?

25 years are reported by both, from 1990 to 2015.

Where does this data come from?

UNESCO Institute for Statistics, published as Population, age 21, female. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Nigeria vs United States of America: Population, age 21, female

Nigeria

1.75 million

in 2015

United States of America

2.26 million

in 2015

Nigeria rank

6th

United States of America rank

3rd

Population, age 21, female over time

Nigeria
United States of America

How they compare

United States of America currently reports 2.26 million against 1.75 million in Nigeria, a difference of 513,010.

That makes United States of America's figure about 1.3 times Nigeria's.

Across all 25 years both countries report, United States of America has been ahead every year.

Nigeria ranks 6th and United States of America ranks 3rd of 191 countries.

United States of America has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Nigeria	United States of America	Difference	Ahead
1990s	956,658	1.82 million	867,013	United States of America
2000s	1.33 million	2.05 million	712,501	United States of America
2010s	1.64 million	2.25 million	606,776	United States of America

Averages of every year both report within each decade.

Frequently asked questions

Which has higher population, age 21, female, Nigeria or United States of America?: United States of America, at 2.26 million against 1.75 million in Nigeria as of 2015.
What is the difference in population, age 21, female between Nigeria and United States of America?: 513,010, with United States of America ahead.
How many years of comparable data are there for Nigeria and United States of America?: 25 years are reported by both, from 1990 to 2015.
How do Nigeria and United States of America rank globally for population, age 21, female?: Nigeria ranks 6th and United States of America ranks 3rd of 191 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Population, age 21, female. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Nigeria vs United States of America: Population, age 21, female. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 24 August 2026, from https://education.statizoid.com/compare/population-age-21-female/nigeria/united-states/

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About this data

Indicator: Population, age 21, female
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 191 places, 4,605 data points, 1990–2015
Last refreshed: 21 August 2026

Age population, female refers to female population at the specified age level, as estimated by the UNESCO Institute for Statistics.