Immunization, Pol3 in Sierra Leone

Sierra Leone: Immunization, Pol3 was 91.0% in 2024. ▲ Rising

Latest (2024)
91.0%
Change on year
unchanged
World rank
87th
of 193 countries
All-time high
95.0%
in 2019
All-time low
38.0%
in 2001
Years of data
26
1999–2024

Immunization, Pol3 in Sierra Leone, 1999–2024

0204060801001999201120241999: 61 % of one-year-old children2000: 46 % of one-year-old children2001: 38 % of one-year-old children2002: 54 % of one-year-old children2003: 66 % of one-year-old children2004: 69 % of one-year-old children2005: 67 % of one-year-old children2006: 65 % of one-year-old children2007: 63 % of one-year-old children2008: 75 % of one-year-old children2009: 81 % of one-year-old children2010: 84 % of one-year-old children2011: 88 % of one-year-old children2012: 91 % of one-year-old children2013: 92 % of one-year-old children2014: 83 % of one-year-old children2015: 86 % of one-year-old children2016: 84 % of one-year-old children2017: 90 % of one-year-old children2018: 93 % of one-year-old children2019: 95 % of one-year-old children2020: 90 % of one-year-old children2021: 90 % of one-year-old children2022: 91 % of one-year-old children2023: 91 % of one-year-old children2024: 91 % of one-year-old children

Source: WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/). Measured in % of one-year-old children.

Analysis

Sierra Leone recorded 91.0% for immunization, pol3 in 2024.

That represents a change of up 9.6% over ten years.

Over the whole period, immunization, pol3 in Sierra Leone peaked at 95.0% in 2019 and was at its lowest, 38.0%, in 2001.

Sierra Leone ranks 87th of 193 countries on this measure, in the middle of the range.

The long-run direction has been consistently rising across the 26 years of available data.

Immunization, Pol3 in Sierra Leone, year by year

Annual values for Immunization, Pol3 (% of one-year-old children) in Sierra Leone, 1999 to 2024.
Year % of one-year-old children Change
1999 61.0%
2000 46.0% -24.6%
2001 38.0% -17.4%
2002 54.0% +42.1%
2003 66.0% +22.2%
2004 69.0% +4.5%
2005 67.0% -2.9%
2006 65.0% -3.0%
2007 63.0% -3.1%
2008 75.0% +19.0%
2009 81.0% +8.0%
2010 84.0% +3.7%
2011 88.0% +4.8%
2012 91.0% +3.4%
2013 92.0% +1.1%
2014 83.0% -9.8%
2015 86.0% +3.6%
2016 84.0% -2.3%
2017 90.0% +7.1%
2018 93.0% +3.3%
2019 95.0% +2.2%
2020 90.0% -5.3%
2021 90.0% +0.0%
2022 91.0% +1.1%
2023 91.0% +0.0%
2024 91.0% +0.0%

Averages by decade

DecadeAverage LowestHighest Years
1990s 61.0% 61.0% 61.0% 1
2000s 62.4% 38.0% 81.0% 10
2010s 88.6% 83.0% 95.0% 10
2020s 90.6% 90.0% 91.0% 5

Countries ranked near Sierra Leone

  1. 87 Burkina Faso 91.0% compare
  2. 87 Finland 91.0% compare
  3. 87 Ghana 91.0% compare
  4. 87 Iraq 91.0% compare
  5. 87 Kiribati 91.0% compare
  6. 87 Netherlands 91.0% compare
  7. 87 Senegal 91.0% compare
  8. 87 Zimbabwe 91.0% compare

See the full ranking of 236 places →

More health data for Sierra Leone

All data for Sierra Leone →

Frequently asked questions

What is immunization, pol3 in Sierra Leone?
Immunization, pol3 in Sierra Leone was 91.0% in 2024, according to WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/).
What is the highest immunization, pol3 recorded in Sierra Leone?
The highest recorded value was 95.0% in 2019.
What is the lowest immunization, pol3 recorded in Sierra Leone?
The lowest recorded value was 38.0% in 2001.
How does Sierra Leone rank for immunization, pol3?
Sierra Leone ranks 87th out of 193 countries with data for 2024.
Is immunization, pol3 rising or falling in Sierra Leone?
Over the last ten years it is up 9.6%. The long-run trend across the full record is rising.
Where does this Sierra Leone data come from?
The figures come from WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/), published as part of Immunization, Pol3 (% of one-year-old children). Statizoid updates them automatically from the source API.

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Immunization, Pol3 in Sierra Leone. Statizoid, drawing on WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/). Retrieved 04 September 2026, from https://health.statizoid.com/stat/immunization-pol3-percent-of-one-year-old-children/sierra-leone/

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About this data

Indicator
Immunization, Pol3 (% of one-year-old children)
Unit
% of one-year-old children
Source
WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/)
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
236 places, 9,949 data points, 1980–2024
Last refreshed

Child immunization rate, polio, is the percentage of children ages 12-23 months who received polio vaccinations before 12 months or at any time before the survey. A child is considered adequately immunized after three doses.