Estimated number of individuals in the country requiring preventive in Nigeria

Nigeria: Estimated number of individuals in the country requiring preventive was 40.38 million in 2024. ▼ Falling

Latest (2024)
40.38 million
Change on year
down 13.9%
World rank
2nd
of 31 countries
All-time high
55.77 million
in 2018
All-time low
40.38 million
in 2024
Years of data
11
2013–2024

Estimated number of individuals in the country requiring preventive in Nigeria, 2013–2024

020.0M40.0M60.0M2013201820242013: 50.1M2014: 51.4M2015: 47.5M2016: 53.1M2017: 49.9M2018: 55.8M2019: 50.6M2021: 50.9M2022: 43.5M2023: 46.9M2024: 40.4M

Source: World Health Organization, Global Health Observatory.

Analysis

In 2024, estimated number of individuals in the country requiring preventive in Nigeria stood at 40.38 million. That is the lowest value across all 11 years on record.

The figure is down 13.9% on the previous year and down 21.4% over ten years.

Over the whole period, estimated number of individuals in the country requiring preventive in Nigeria peaked at 55.77 million in 2018 and was at its lowest, 40.38 million, in 2024.

Nigeria ranks 2nd of 31 countries on this measure, in the top 10%.

The long-run direction has been consistently falling across the 11 years of available data.

Estimated number of individuals in the country requiring preventive in Nigeria, year by year

Annual values for Estimated number of individuals in the country requiring preventive chemotherapy for onchocerciasis in Nigeria, 2013 to 2024.
Year Value Change
2013 50.12 million
2014 51.39 million +2.5%
2015 47.48 million -7.6%
2016 53.08 million +11.8%
2017 49.90 million -6.0%
2018 55.77 million +11.8%
2019 50.57 million -9.3%
2021 50.88 million +0.6%
2022 43.47 million -14.6%
2023 46.89 million +7.9%
2024 40.38 million -13.9%

Nigeria compared with similar countries

  • Nigeria's 40.38 million is above the median for Sub-Saharan Africa, which is 4.52 million, 8.9× the median. (28 countries reporting)
  • Nigeria's 40.38 million is above the median for lower middle income countries, which is 6.66 million, 6.1× the median. (12 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
2010s 51.19 million 47.48 million 55.77 million 7
2020s 45.40 million 40.38 million 50.88 million 4

Countries ranked near Nigeria

  1. 1 Congo, Democratic Republic of the 57.75 million compare
  2. 3 Ethiopia 30.56 million compare
  3. 4 Côte d'Ivoire 22.62 million compare
  4. 5 Guinea 11.78 million compare

See the full ranking of 31 places →

More health data for Nigeria

All data for Nigeria →

Frequently asked questions

What is estimated number of individuals in the country requiring preventive in Nigeria?
Estimated number of individuals in the country requiring preventive in Nigeria was 40.38 million in 2024, according to World Health Organization, Global Health Observatory.
What is the highest estimated number of individuals in the country requiring preventive recorded in Nigeria?
The highest recorded value was 55.77 million in 2018.
What is the lowest estimated number of individuals in the country requiring preventive recorded in Nigeria?
The lowest recorded value was 40.38 million in 2024.
How does Nigeria rank for estimated number of individuals in the country requiring preventive?
Nigeria ranks 2nd out of 31 countries with data for 2024.
Is estimated number of individuals in the country requiring preventive rising or falling in Nigeria?
Over the last ten years it is down 21.4%. The long-run trend across the full record is falling.
Where does this Nigeria data come from?
The figures come from World Health Organization, Global Health Observatory, published as part of Estimated number of individuals in the country requiring preventive chemotherapy for onchocerciasis. Statizoid updates them automatically from the source API.

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Estimated number of individuals in the country requiring preventive in Nigeria. Statizoid, drawing on World Health Organization, Global Health Observatory. Retrieved 16 September 2026, from https://health.statizoid.com/stat/estimated-number-of-individuals-in-the-country-requiring-preventive-chemotherapy-for/nigeria/

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About this data

Indicator
Estimated number of individuals in the country requiring preventive chemotherapy for onchocerciasis
Source
World Health Organization, Global Health Observatory
Licence
CC BY-NC-SA 3.0 IGO (WHO)
Coverage
31 places, 331 data points, 2013–2024
Last refreshed