Nigeria vs Sierra Leone: Adolescent mortality rate

Nigeria
8.77
in 2024
Sierra Leone
9.55
in 2024
Nigeria rank
6th
Sierra Leone rank
5th

Adolescent mortality rate over time

  • Nigeria
  • Sierra Leone
051015199020072024

How they compare

Sierra Leone currently reports 9.55 against 8.77 in Nigeria, a difference of 0.78.

That makes Sierra Leone's figure about 1.1 times Nigeria's.

Across all 35 years both countries report, Sierra Leone has been ahead every year.

Nigeria ranks 6th and Sierra Leone ranks 5th of 200 countries.

Sierra Leone has averaged higher in every one of the 4 decades both report.

Head to head by decade

Decade Nigeria Sierra Leone Difference Ahead
1990s 11.88 13.66 1.78 Sierra Leone
2000s 9.99 10.77 0.7792 Sierra Leone
2010s 8.94 10.11 1.17 Sierra Leone
2020s 8.8 9.87 1.06 Sierra Leone

Averages of every year both report within each decade.

Frequently asked questions

Which has higher adolescent mortality rate, Nigeria or Sierra Leone?
Sierra Leone, at 9.55 against 8.77 in Nigeria as of 2024.
What is the difference in adolescent mortality rate between Nigeria and Sierra Leone?
0.78, with Sierra Leone ahead.
How many years of comparable data are there for Nigeria and Sierra Leone?
35 years are reported by both, from 1990 to 2024.
How do Nigeria and Sierra Leone rank globally for adolescent mortality rate?
Nigeria ranks 6th and Sierra Leone ranks 5th of 200 countries.
Where does this data come from?
World Health Organization, Global Health Observatory, published as Adolescent mortality rate (per 1 000 age specific cohort). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Nigeria vs Sierra Leone: Adolescent mortality rate. Statizoid, drawing on World Health Organization, Global Health Observatory. Retrieved 04 September 2026, from https://health.statizoid.com/compare/adolescent-mortality-rate-per-1-000-age-specific-cohort/nigeria/sierra-leone/

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About this data

Indicator
Adolescent mortality rate (per 1 000 age specific cohort)
Source
World Health Organization, Global Health Observatory
Licence
CC BY-NC-SA 3.0 IGO (WHO)
Coverage
213 places, 7,455 data points, 1990–2024
Last refreshed