Nigeria vs Sierra Leone: Population 0-24

Nigeria
62.3%
in 2011
Sierra Leone
62.3%
in 2011
Nigeria rank
25th
Sierra Leone rank
23rd

Population 0-24 over time

  • Nigeria
  • Sierra Leone
0204060196019852011

How they compare

Sierra Leone currently reports 62.3% against 62.3% in Nigeria, a difference of 0.0%.

The two have swapped places 1 time across 52 shared years of data; in 1960 it was Nigeria ahead.

Nigeria ranks 25th and Sierra Leone ranks 23rd of 52 countries.

Across the 6 decades both report, Nigeria averaged higher in 5 and Sierra Leone in 1.

Head to head by decade

Decade Nigeria Sierra Leone Difference Ahead
1960s 61.0% 58.7% 2.2% Nigeria
1970s 61.8% 59.1% 2.7% Nigeria
1980s 63.1% 60.6% 2.6% Nigeria
1990s 63.6% 61.9% 1.7% Nigeria
2000s 63.0% 62.6% 0.3% Nigeria
2010s 62.3% 62.3% 0.0% Sierra Leone

Averages of every year both report within each decade.

Frequently asked questions

Which has higher population 0-24, Nigeria or Sierra Leone?
Sierra Leone, at 62.3% against 62.3% in Nigeria as of 2011.
What is the difference in population 0-24 between Nigeria and Sierra Leone?
0.0%, with Sierra Leone ahead.
How many years of comparable data are there for Nigeria and Sierra Leone?
52 years are reported by both, from 1960 to 2011.
How do Nigeria and Sierra Leone rank globally for population 0-24?
Nigeria ranks 25th and Sierra Leone ranks 23rd of 52 countries.
Where does this data come from?
World Bank staff estimates from various sources including census reports, the United Nations Population Division's World Population Prospects, national statistical offices, household surveys conducted, published as Population 0-24 (% of total population). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Nigeria vs Sierra Leone: Population 0-24. Statizoid, drawing on World Bank staff estimates from various sources including census reports, the United Nations Population Division's World Population Prospects, national statistical offices, household surveys conducted. Retrieved 10 September 2026, from https://health.statizoid.com/compare/population-0-24-percent-of-total-population/nigeria/sierra-leone/

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About this data

Indicator
Population 0-24 (% of total population)
Unit
% of total population
Source
World Bank staff estimates from various sources including census reports, the United Nations Population Division's World Population Prospects, national statistical offices, household surveys conducted
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
58 places, 3,016 data points, 1960–2011
Last refreshed

Population ages 0 to 24 is the percentage of the total population that is in the age group 0 to 24.