San Marino vs Saint Kitts and Nevis: Number of one-year-olds who are not vaccinated against polio
San Marino
19.89 one-year-olds
in 2023
Saint Kitts and Nevis
22.36 one-year-olds
in 2023
San Marino rank
187th
Saint Kitts and Nevis rank
185th
Number of one-year-olds who are not vaccinated against polio over time
- San Marino
- Saint Kitts and Nevis
How they compare
Saint Kitts and Nevis currently reports 22.36 one-year-olds against 19.89 one-year-olds in San Marino, a difference of 2.47 one-year-olds.
That makes Saint Kitts and Nevis's figure about 1.1 times San Marino's.
The two have swapped places 10 times across 41 shared years of data; in 1983 it was Saint Kitts and Nevis ahead.
San Marino ranks 187th and Saint Kitts and Nevis ranks 185th of 194 countries.
Across the 5 decades both report, San Marino averaged higher in 3 and Saint Kitts and Nevis in 2.
Head to head by decade
| Decade | San Marino | Saint Kitts and Nevis | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 2.31 one-year-olds | 48.09 one-year-olds | 45.78 one-year-olds | Saint Kitts and Nevis |
| 1990s | 5.03 one-year-olds | 10.24 one-year-olds | 5.21 one-year-olds | Saint Kitts and Nevis |
| 2000s | 21.83 one-year-olds | 15.19 one-year-olds | 6.64 one-year-olds | San Marino |
| 2010s | 37.15 one-year-olds | 23.45 one-year-olds | 13.71 one-year-olds | San Marino |
| 2020s | 22.35 one-year-olds | 18.57 one-year-olds | 3.77 one-year-olds | San Marino |
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, San Marino or Saint Kitts and Nevis?
- Saint Kitts and Nevis, at 22.36 one-year-olds against 19.89 one-year-olds in San Marino as of 2023.
- What is the difference in number of one-year-olds who are not vaccinated against polio between San Marino and Saint Kitts and Nevis?
- 2.47 one-year-olds, with Saint Kitts and Nevis ahead.
- How many years of comparable data are there for San Marino and Saint Kitts and Nevis?
- 41 years are reported by both, from 1983 to 2023.
- How do San Marino and Saint Kitts and Nevis rank globally for number of one-year-olds who are not vaccinated against polio?
- San Marino ranks 187th and Saint Kitts and Nevis ranks 185th 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.