Inactivated first-dose polio vaccine (IPV1) immunization coverage in Sierra Leone

Sierra Leone: Inactivated first-dose polio vaccine (IPV1) immunization coverage was 91.0% in 2025. ◆ Volatile

Latest (2025)
91.0%
Change on year
unchanged
World rank
111th
of 194 countries
All-time high
93.0%
in 2021
All-time low
0.0%
in 2015
Years of data
11
2015–2025

Inactivated first-dose polio vaccine (IPV1) immunization coverage in Sierra Leone, 2015–2025

0204060801002015202020252015: 02016: 02017: 02018: 602019: 862020: 892021: 932022: 912023: 912024: 912025: 91

Source: World Health Organization, Global Health Observatory.

Analysis

The most recent figure for inactivated first-dose polio vaccine (ipv1) immunization coverage in Sierra Leone is 91.0%, measured in 2025.

The figure is up 2.2% over five years.

Over the whole period, inactivated first-dose polio vaccine (ipv1) immunization coverage in Sierra Leone peaked at 93.0% in 2021 and was at its lowest, 0.0%, in 2015.

That places Sierra Leone 111th out of 194 countries with data for 2025, putting it in the middle of the range.

The series is highly variable year to year, so single readings are best treated with caution.

Inactivated first-dose polio vaccine (IPV1) immunization coverage in Sierra Leone, year by year

Annual values for Inactivated first-dose polio vaccine (IPV1) immunization coverage among 1-year-olds (%) (WUENIC) in Sierra Leone, 2015 to 2025.
Year Value Change
2015 0.0%
2016 0.0%
2017 0.0%
2018 60.0%
2019 86.0% +43.3%
2020 89.0% +3.5%
2021 93.0% +4.5%
2022 91.0% -2.2%
2023 91.0% +0.0%
2024 91.0% +0.0%
2025 91.0% +0.0%

Averages by decade

DecadeAverage LowestHighest Years
2010s 29.2% 0.0% 86.0% 5
2020s 91.0% 89.0% 93.0% 6

Countries ranked near Sierra Leone

  1. 111 Burkina Faso 91.0% compare
  2. 111 Peru 91.0% compare
  3. 111 Ukraine 91.0% compare

See the full ranking of 213 places →

More health data for Sierra Leone

All data for Sierra Leone →

Frequently asked questions

What is inactivated first-dose polio vaccine (ipv1) immunization coverage in Sierra Leone?
Inactivated first-dose polio vaccine (ipv1) immunization coverage in Sierra Leone was 91.0% in 2025, according to World Health Organization, Global Health Observatory.
What is the highest inactivated first-dose polio vaccine (ipv1) immunization coverage recorded in Sierra Leone?
The highest recorded value was 93.0% in 2021.
What is the lowest inactivated first-dose polio vaccine (ipv1) immunization coverage recorded in Sierra Leone?
The lowest recorded value was 0.0% in 2015.
How does Sierra Leone rank for inactivated first-dose polio vaccine (ipv1) immunization coverage?
Sierra Leone ranks 111th out of 194 countries with data for 2025.
Where does this Sierra Leone data come from?
The figures come from World Health Organization, Global Health Observatory, published as part of Inactivated first-dose polio vaccine (IPV1) immunization coverage among 1-year-olds (%) (WUENIC). Statizoid updates them automatically from the source API.

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CSV · JSON — 11 observations, free to reuse under CC BY-NC-SA 3.0 IGO (WHO).

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Inactivated first-dose polio vaccine (IPV1) immunization coverage in Sierra Leone. Statizoid, drawing on World Health Organization, Global Health Observatory. Retrieved 04 September 2026, from https://health.statizoid.com/stat/inactivated-first-dose-polio-vaccine-ipv1-immunization-coverage-among-1-year-olds-percent/sierra-leone/

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<a href="https://health.statizoid.com/stat/inactivated-first-dose-polio-vaccine-ipv1-immunization-coverage-among-1-year-olds-percent/sierra-leone/">Inactivated first-dose polio vaccine (IPV1) immunization coverage in Sierra Leone</a> — Statizoid

About this data

Indicator
Inactivated first-dose polio vaccine (IPV1) immunization coverage among 1-year-olds (%) (WUENIC)
Source
World Health Organization, Global Health Observatory
Licence
CC BY-NC-SA 3.0 IGO (WHO)
Coverage
213 places, 2,343 data points, 2015–2025
Last refreshed