Number of one-year-olds who have not received the inactivated polio vaccine in Samoa
Samoa: Number of one-year-olds who have not received the inactivated polio vaccine was 772.8 one-year-olds in 2023. ◆ Volatile
Latest (2023)
772.8 one-year-olds
Change on year
down 40.8%
World rank
150th
of 194 countries
All-time high
3,147 one-year-olds
in 2018
All-time low
237.52 one-year-olds
in 2020
Years of data
8
2016–2023
Number of one-year-olds who have not received the inactivated polio vaccine in Samoa, 2016–2023
Source: WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in one-year-olds.
Analysis
The most recent figure for number of one-year-olds who have not received the inactivated polio vaccine in Samoa is 772.8 one-year-olds, measured in 2023.
Compared with earlier readings it is down 40.8% on the previous year and up 119.0% over ten years.
That places Samoa 150th out of 194 countries with data for 2023, putting it in the bottom quarter.
Number of one-year-olds who have not received the inactivated polio vaccine in Samoa, year by year
| Year | one-year-olds | Change |
|---|---|---|
| 2016 | 352.92 one-year-olds | — |
| 2017 | 1,109 one-year-olds | +214.2% |
| 2018 | 3,147 one-year-olds | +183.7% |
| 2019 | 1,417 one-year-olds | -55.0% |
| 2020 | 237.52 one-year-olds | -83.2% |
| 2021 | 1,343 one-year-olds | +465.6% |
| 2022 | 1,306 one-year-olds | -2.8% |
| 2023 | 772.8 one-year-olds | -40.8% |
Samoa compared with similar countries
- Samoa's 772.8 one-year-olds is below the median for upper middle income countries, which is 3,855 one-year-olds, 20% of the median. (58 countries reporting)
- Samoa's 772.8 one-year-olds is below the median for East Asia & Pacific, which is 4,157 one-year-olds, 19% of the median. (30 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 1,506 one-year-olds | 352.92 one-year-olds | 3,147 one-year-olds | 4 |
| 2020s | 915.04 one-year-olds | 237.52 one-year-olds | 1,343 one-year-olds | 4 |
Countries ranked near Samoa
More health data for Samoa
- Un projection of annual infant deaths, annual growth rate 0 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 1.71 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 708.7 deaths per 1,000 people (2090)
- Number of infants who die before age 1 17 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 1 (2025)
- Population ages 00-04, female, annual growth rate -2.45 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.0591 units per person (2025)
- Population ages 00-04, male, annual growth rate -2.5 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0 units per US$ of GDP (2025)
Frequently asked questions
- What is number of one-year-olds who have not received the inactivated polio vaccine in Samoa?
- Number of one-year-olds who have not received the inactivated polio vaccine in Samoa was 772.8 one-year-olds in 2023, according to WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data.
- What is the highest number of one-year-olds who have not received the inactivated polio vaccine recorded in Samoa?
- The highest recorded value was 3,147 one-year-olds in 2018.
- What is the lowest number of one-year-olds who have not received the inactivated polio vaccine recorded in Samoa?
- The lowest recorded value was 237.52 one-year-olds in 2020.
- How does Samoa rank for number of one-year-olds who have not received the inactivated polio vaccine?
- Samoa ranks 150th out of 194 countries with data for 2023.
- Is number of one-year-olds who have not received the inactivated polio vaccine rising or falling in Samoa?
- Over the last ten years it is up 119.0%. The long-run trend across the full record is volatile.
- Where does this Samoa data come from?
- The figures come from WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Number of one-year-olds who have not received the inactivated polio vaccine. Statizoid updates them automatically from the source API.
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About this data
Number of one-year-olds who have not had the first dose of the inactivated polio vaccine in a given year.