What is the difference in incidence of malaria between Nigeria and Sierra Leone?

11.58 per 1,000 population at risk, with Nigeria ahead.

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

25 years are reported by both, from 2000 to 2024.

Where does this data come from?

Global Health Observatory Data Repository/World Health Statistics, World Health Organization (WHO), published as Incidence of malaria (per 1,000 population at risk). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Nigeria vs Sierra Leone: Incidence of malaria

Nigeria

294.25 per 1,000 population at risk

in 2024

Sierra Leone

282.67 per 1,000 population at risk

in 2024

Nigeria rank

10th

Sierra Leone rank

12th

Incidence of malaria over time

Nigeria
Sierra Leone

How they compare

Nigeria currently reports 294.25 per 1,000 population at risk against 282.67 per 1,000 population at risk in Sierra Leone, a difference of 11.58 per 1,000 population at risk.

The two have swapped places 3 times across 25 shared years of data; in 2000 it was Sierra Leone ahead.

Nigeria ranks 10th and Sierra Leone ranks 12th of 107 countries.

Across the 3 decades both report, Nigeria averaged higher in 1 and Sierra Leone in 2.

Head to head by decade

Decade	Nigeria	Sierra Leone	Difference	Ahead
2000s	393.73 per 1,000 population at risk	417.1 per 1,000 population at risk	23.38 per 1,000 population at risk	Sierra Leone
2010s	304.63 per 1,000 population at risk	380.1 per 1,000 population at risk	75.47 per 1,000 population at risk	Sierra Leone
2020s	299.18 per 1,000 population at risk	296.77 per 1,000 population at risk	2.4 per 1,000 population at risk	Nigeria

Averages of every year both report within each decade.

Frequently asked questions

Which has higher incidence of malaria, Nigeria or Sierra Leone?: Nigeria, at 294.25 per 1,000 population at risk against 282.67 per 1,000 population at risk in Sierra Leone as of 2024.
What is the difference in incidence of malaria between Nigeria and Sierra Leone?: 11.58 per 1,000 population at risk, with Nigeria ahead.
How many years of comparable data are there for Nigeria and Sierra Leone?: 25 years are reported by both, from 2000 to 2024.
How do Nigeria and Sierra Leone rank globally for incidence of malaria?: Nigeria ranks 10th and Sierra Leone ranks 12th of 107 countries.
Where does this data come from?: Global Health Observatory Data Repository/World Health Statistics, World Health Organization (WHO), published as Incidence of malaria (per 1,000 population at risk). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Nigeria vs Sierra Leone: Incidence of malaria. Statizoid, drawing on Global Health Observatory Data Repository/World Health Statistics, World Health Organization (WHO). Retrieved 12 September 2026, from https://health.statizoid.com/compare/incidence-of-malaria-per-1-000-population-at-risk/nigeria/sierra-leone/

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<a href="https://health.statizoid.com/compare/incidence-of-malaria-per-1-000-population-at-risk/nigeria/sierra-leone/">Nigeria vs Sierra Leone: Incidence of malaria</a> — Statizoid

About this data

Indicator: Incidence of malaria (per 1,000 population at risk)
Unit: per 1,000 population at risk
Source: Global Health Observatory Data Repository/World Health Statistics, World Health Organization (WHO)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 141 places, 3,452 data points, 2000–2024
Last refreshed: 03 September 2026

Incidence of malaria is the number of new cases of malaria in a year per 1,000 population at risk.