Costa Rica vs Tonga: Share of one-year-olds who are vaccinated against polio
Costa Rica
99.0%
in 2024
Tonga
99.0%
in 2024
Costa Rica rank
1st
Tonga rank
1st
Share of one-year-olds who are vaccinated against polio over time
- Costa Rica
- Tonga
How they compare
Costa Rica currently reports 99.0% against 99.0% in Tonga, a difference of 0.0%.
The two have swapped places 11 times across 45 shared years of data; in 1980 it was Costa Rica ahead.
Costa Rica ranks 1st and Tonga ranks 1st of 194 countries.
Across the 5 decades both report, Costa Rica averaged higher in 1 and Tonga in 4.
Head to head by decade
| Decade | Costa Rica | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 87.1% | 66.6% | 20.5% | Costa Rica |
| 1990s | 88.9% | 94.9% | 6.0% | Tonga |
| 2000s | 88.2% | 97.2% | 9.0% | Tonga |
| 2010s | 92.6% | 97.9% | 5.3% | Tonga |
| 2020s | 96.4% | 99.0% | 2.6% | Tonga |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of one-year-olds who are vaccinated against polio, Costa Rica or Tonga?
- Costa Rica, at 99.0% against 99.0% in Tonga as of 2024.
- What is the difference in share of one-year-olds who are vaccinated against polio between Costa Rica and Tonga?
- 0.0%, with Costa Rica ahead.
- How many years of comparable data are there for Costa Rica and Tonga?
- 45 years are reported by both, from 1980 to 2024.
- How do Costa Rica and Tonga rank globally for share of one-year-olds who are vaccinated against polio?
- Costa Rica ranks 1st and Tonga ranks 1st 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 Share of one-year-olds who are vaccinated against polio. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Share of one-year-olds who have had the third dose of either the oral or inactivated polio vaccine in a given year.