Australia vs Bulgaria: Share of one-year-olds who are vaccinated against polio
Australia
94.0%
in 2024
Bulgaria
94.0%
in 2024
Australia rank
63rd
Bulgaria rank
63rd
Share of one-year-olds who are vaccinated against polio over time
- Australia
- Bulgaria
How they compare
Australia currently reports 94.0% against 94.0% in Bulgaria, a difference of 0.0%.
The two have swapped places 2 times across 45 shared years of data; in 1980 it was Bulgaria ahead.
Australia ranks 63rd and Bulgaria ranks 63rd of 194 countries.
Across the 5 decades both report, Australia averaged higher in 2 and Bulgaria in 3.
Head to head by decade
| Decade | Australia | Bulgaria | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 79.0% | 98.9% | 19.9% | Bulgaria |
| 1990s | 80.8% | 95.1% | 14.3% | Bulgaria |
| 2000s | 91.7% | 95.0% | 3.3% | Bulgaria |
| 2010s | 93.1% | 92.7% | 0.4% | Australia |
| 2020s | 94.4% | 91.4% | 3.0% | Australia |
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, Australia or Bulgaria?
- Australia, at 94.0% against 94.0% in Bulgaria as of 2024.
- What is the difference in share of one-year-olds who are vaccinated against polio between Australia and Bulgaria?
- 0.0%, with Australia ahead.
- How many years of comparable data are there for Australia and Bulgaria?
- 45 years are reported by both, from 1980 to 2024.
- How do Australia and Bulgaria rank globally for share of one-year-olds who are vaccinated against polio?
- Australia ranks 63rd and Bulgaria ranks 63rd 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.