Share of one-year-olds who are vaccinated against polio in Cook Islands
Cook Islands: Share of one-year-olds who are vaccinated against polio was 75.0% in 2024. ▲ Rising
Share of one-year-olds who are vaccinated against polio in Cook Islands, 1980–2024
Source: WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in %.
Analysis
The most recent figure for share of one-year-olds who are vaccinated against polio in Cook Islands is 75.0%, measured in 2024.
That represents a change of down 12.8% on the previous year and down 24.2% over ten years.
Over the whole period, share of one-year-olds who are vaccinated against polio in Cook Islands peaked at 99.0% in 1993 and was at its lowest, 39.0%, in 1980.
That places Cook Islands 153rd out of 194 countries with data for 2024, putting it in the bottom quarter.
The long-run direction has been consistently rising across the 45 years of available data.
Share of one-year-olds who are vaccinated against polio in Cook Islands, year by year
| Year | % | Change |
|---|---|---|
| 1980 | 39.0% | — |
| 1981 | 48.0% | +23.1% |
| 1982 | 57.0% | +18.8% |
| 1983 | 47.0% | -17.5% |
| 1984 | 96.0% | +104.3% |
| 1985 | 91.0% | -5.2% |
| 1986 | 82.0% | -9.9% |
| 1987 | 82.0% | +0.0% |
| 1988 | 94.0% | +14.6% |
| 1989 | 89.0% | -5.3% |
| 1990 | 83.0% | -6.7% |
| 1991 | 87.0% | +4.8% |
| 1992 | 87.0% | +0.0% |
| 1993 | 99.0% | +13.8% |
| 1994 | 86.0% | -13.1% |
| 1995 | 93.0% | +8.1% |
| 1996 | 75.0% | -19.4% |
| 1997 | 93.0% | +24.0% |
| 1998 | 93.0% | +0.0% |
| 1999 | 92.0% | -1.1% |
| 2000 | 92.0% | +0.0% |
| 2001 | 90.0% | -2.2% |
| 2002 | 97.0% | +7.8% |
| 2003 | 95.0% | -2.1% |
| 2004 | 99.0% | +4.2% |
| 2005 | 99.0% | +0.0% |
| 2006 | 99.0% | +0.0% |
| 2007 | 99.0% | +0.0% |
| 2008 | 99.0% | +0.0% |
| 2009 | 82.0% | -17.2% |
| 2010 | 99.0% | +20.7% |
| 2011 | 93.0% | -6.1% |
| 2012 | 98.0% | +5.4% |
| 2013 | 98.0% | +0.0% |
| 2014 | 99.0% | +1.0% |
| 2015 | 99.0% | +0.0% |
| 2016 | 99.0% | +0.0% |
| 2017 | 99.0% | +0.0% |
| 2018 | 99.0% | +0.0% |
| 2019 | 98.0% | -1.0% |
| 2020 | 89.0% | -9.2% |
| 2021 | 81.0% | -9.0% |
| 2022 | 81.0% | +0.0% |
| 2023 | 86.0% | +6.2% |
| 2024 | 75.0% | -12.8% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 72.5% | 39.0% | 96.0% | 10 |
| 1990s | 88.8% | 75.0% | 99.0% | 10 |
| 2000s | 95.1% | 82.0% | 99.0% | 10 |
| 2010s | 98.1% | 93.0% | 99.0% | 10 |
| 2020s | 82.4% | 75.0% | 89.0% | 5 |
Countries ranked near Cook Islands
More health data for Cook Islands
- Heat deaths vs projected death rates, annual growth rate 1.79 % change on previous year (2090)
- Un projection of annual infant deaths, annual growth rate -100 % change on previous year (2029)
- Estimated changes in temperature-related death rates compared to projected death rates 937.6 deaths per 1,000 people (2090)
- Number of infants who die before age 1 0 deaths (2100)
- Share of adults who are obese vs. daily protein supply 72.4% (2024)
- Vaccination coverage vs. share in extreme poverty 75.0% (2024)
- Vaccination coverage vs. GDP per capita 75.0% (2024)
- Vaccination against DTP vs. perception of the safety of vaccines 75.0% (2024)
- Obesity in men vs. women 70.6% (2024)
- Share of adults who are obese vs. GDP per capita 72.4% (2024)
Frequently asked questions
- What is share of one-year-olds who are vaccinated against polio in Cook Islands?
- Share of one-year-olds who are vaccinated against polio in Cook Islands was 75.0% in 2024, according to WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data.
- What is the highest share of one-year-olds who are vaccinated against polio recorded in Cook Islands?
- The highest recorded value was 99.0% in 1993.
- What is the lowest share of one-year-olds who are vaccinated against polio recorded in Cook Islands?
- The lowest recorded value was 39.0% in 1980.
- How does Cook Islands rank for share of one-year-olds who are vaccinated against polio?
- Cook Islands ranks 153rd out of 194 countries with data for 2024.
- Is share of one-year-olds who are vaccinated against polio rising or falling in Cook Islands?
- Over the last ten years it is down 24.2%. The long-run trend across the full record is rising.
- Where does this Cook Islands 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 Share of one-year-olds who are vaccinated against polio. Statizoid updates them automatically from the source API.
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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.