Estimated number of individuals in the country requiring preventive in Sierra Leone

Sierra Leone: Estimated number of individuals in the country requiring preventive was 7.07 million in 2024. ▲ Rising

Latest (2024)
7.07 million
Change on year
down 4.5%
World rank
9th
of 31 countries
All-time high
7.40 million
in 2023
All-time low
3.18 million
in 2013
Years of data
11
2013–2024

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

02.0M4.0M6.0M8.0M2013201820242013: 3.2M2014: 3.2M2015: 3.4M2016: 5.3M2017: 5.9M2018: 5.8M2019: 6.2M2021: 7.3M2022: 7.4M2023: 7.4M2024: 7.1M

Source: World Health Organization, Global Health Observatory.

Analysis

The most recent figure for estimated number of individuals in the country requiring preventive in Sierra Leone is 7.07 million, measured in 2024.

Compared with earlier readings it is down 4.5% on the previous year and up 118.0% over ten years.

Over the whole period, estimated number of individuals in the country requiring preventive in Sierra Leone peaked at 7.40 million in 2023 and was at its lowest, 3.18 million, in 2013.

That places Sierra Leone 9th out of 31 countries with data for 2024, putting it in the middle of the range.

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

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

Annual values for Estimated number of individuals in the country requiring preventive chemotherapy for onchocerciasis in Sierra Leone, 2013 to 2024.
Year Value Change
2013 3.18 million
2014 3.24 million +2.1%
2015 3.37 million +4.1%
2016 5.33 million +58.1%
2017 5.94 million +11.5%
2018 5.84 million -1.7%
2019 6.23 million +6.7%
2021 7.32 million +17.4%
2022 7.36 million +0.6%
2023 7.40 million +0.5%
2024 7.07 million -4.5%

Sierra Leone compared with similar countries

  • Sierra Leone's 7.07 million is above the median for Sub-Saharan Africa, which is 4.52 million, 1.6× the median. (28 countries reporting)
  • Sierra Leone's 7.07 million is above the median for low income countries, which is 3.03 million, 2.3× the median. (16 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
2010s 4.73 million 3.18 million 6.23 million 7
2020s 7.29 million 7.07 million 7.40 million 4

Countries ranked near Sierra Leone

  1. 6 Cameroon 11.77 million compare
  2. 7 South Sudan 9.77 million compare
  3. 8 Mali 7.31 million compare
  4. 10 Tanzania, United Republic of 6.88 million compare
  5. 11 Angola 6.77 million compare
  6. 12 Benin 6.55 million compare

See the full ranking of 31 places →

More health data for Sierra Leone

All data for Sierra Leone →

Frequently asked questions

What is estimated number of individuals in the country requiring preventive in Sierra Leone?
Estimated number of individuals in the country requiring preventive in Sierra Leone was 7.07 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 Sierra Leone?
The highest recorded value was 7.40 million in 2023.
What is the lowest estimated number of individuals in the country requiring preventive recorded in Sierra Leone?
The lowest recorded value was 3.18 million in 2013.
How does Sierra Leone rank for estimated number of individuals in the country requiring preventive?
Sierra Leone ranks 9th out of 31 countries with data for 2024.
Is estimated number of individuals in the country requiring preventive rising or falling in Sierra Leone?
Over the last ten years it is up 118.0%. The long-run trend across the full record is rising.
Where does this Sierra Leone 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 Sierra Leone. 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/sierra-leone/

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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