Sao Tome and Principe vs Singapore: Number of one-year-olds who are not vaccinated against polio
Sao Tome and Principe
937.65 one-year-olds
in 2023
Singapore
906.12 one-year-olds
in 2023
Sao Tome and Principe rank
149th
Singapore rank
151st
Number of one-year-olds who are not vaccinated against polio over time
- Sao Tome and Principe
- Singapore
How they compare
Sao Tome and Principe currently reports 937.65 one-year-olds against 906.12 one-year-olds in Singapore, a difference of 31.53 one-year-olds.
The two have swapped places 3 times across 43 shared years of data; in 1981 it was Singapore ahead.
Sao Tome and Principe ranks 149th and Singapore ranks 151st of 194 countries.
Singapore has averaged higher in every one of the 5 decades both report.
Head to head by decade
| Decade | Sao Tome and Principe | Singapore | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 1,657 one-year-olds | 5,280 one-year-olds | 3,623 one-year-olds | Singapore |
| 1990s | 1,158 one-year-olds | 3,062 one-year-olds | 1,905 one-year-olds | Singapore |
| 2000s | 238.17 one-year-olds | 1,785 one-year-olds | 1,547 one-year-olds | Singapore |
| 2010s | 248.62 one-year-olds | 1,664 one-year-olds | 1,416 one-year-olds | Singapore |
| 2020s | 597.9 one-year-olds | 1,023 one-year-olds | 425.23 one-year-olds | Singapore |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher number of one-year-olds who are not vaccinated against polio, Sao Tome and Principe or Singapore?
- Sao Tome and Principe, at 937.65 one-year-olds against 906.12 one-year-olds in Singapore as of 2023.
- What is the difference in number of one-year-olds who are not vaccinated against polio between Sao Tome and Principe and Singapore?
- 31.53 one-year-olds, with Sao Tome and Principe ahead.
- How many years of comparable data are there for Sao Tome and Principe and Singapore?
- 43 years are reported by both, from 1981 to 2023.
- How do Sao Tome and Principe and Singapore rank globally for number of one-year-olds who are not vaccinated against polio?
- Sao Tome and Principe ranks 149th and Singapore ranks 151st of 194 countries.
- Where does this data come from?
- WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as Number of one-year-olds who are not vaccinated against polio. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Number of one-year-olds who have not had the third dose of either the oral or inactivated polio vaccine in a given year.