Share of one-year-olds vaccinated against diphtheria, tetanus in Cook Islands
Cook Islands: Share of one-year-olds vaccinated against diphtheria, tetanus was 95.0% in 2025. ▲ Rising
Share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Cook Islands, 1980–2025
Source: WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in %.
Analysis
The most recent figure for share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Cook Islands is 95.0%, measured in 2025.
That represents a change of up 26.7% on the previous year and down 4.0% over ten years.
Over the whole period, share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Cook Islands peaked at 99.0% in 1993 and was at its lowest, 40.0%, in 1980.
That places Cook Islands 59th out of 195 countries with data for 2025, putting it in the middle of the range.
The long-run direction has been consistently rising across the 46 years of available data.
Share of one-year-olds vaccinated against diphtheria, tetanus in Cook Islands, year by year
| Year | % | Change |
|---|---|---|
| 1980 | 40.0% | — |
| 1981 | 46.0% | +15.0% |
| 1982 | 51.0% | +10.9% |
| 1983 | 57.0% | +11.8% |
| 1984 | 48.0% | -15.8% |
| 1985 | 78.0% | +62.5% |
| 1986 | 87.0% | +11.5% |
| 1987 | 83.0% | -4.6% |
| 1988 | 94.0% | +13.3% |
| 1989 | 89.0% | -5.3% |
| 1990 | 93.0% | +4.5% |
| 1991 | 87.0% | -6.5% |
| 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 | 96.0% | -1.0% |
| 2004 | 99.0% | +3.1% |
| 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 | 72.0% | -11.1% |
| 2023 | 86.0% | +19.4% |
| 2024 | 75.0% | -12.8% |
| 2025 | 95.0% | +26.7% |
Biggest year-on-year movements
Years where Share of one-year-olds vaccinated against diphtheria, tetanus in Cook Islands changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1985 | +62.5% | 48.0% | 78.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 67.3% | 40.0% | 94.0% | 10 |
| 1990s | 89.8% | 75.0% | 99.0% | 10 |
| 2000s | 95.2% | 82.0% | 99.0% | 10 |
| 2010s | 98.1% | 93.0% | 99.0% | 10 |
| 2020s | 83.0% | 72.0% | 95.0% | 6 |
Countries ranked near Cook Islands
- 59 Botswana 95.0% compare
- 59 Chile 95.0% compare
- 59 India 95.0% compare
- 59 Italy 95.0% compare
- 59 Jamaica 95.0% compare
- 59 Jordan 95.0% compare
- 59 Kuwait 95.0% compare
- 59 Malaysia 95.0% compare
- 59 Niue 95.0% compare
- 59 Rwanda 95.0% compare
- 59 Saint Kitts and Nevis 95.0% compare
- 59 Sweden 95.0% compare
- 59 Switzerland 95.0% compare
More reference data data for Cook Islands
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.0034 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.0034 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.003 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 0.0002 (2050)
- Emission Totals - Direct emissions (N2O) - IPCC Agriculture 0.0082 (2050)
- Emission Totals - Emissions (CO2eq) (AR5) - Manure left on Pasture 0.2524 (2050)
- Emission Totals - Emissions (CO2eq) from N2O (AR5) - IPCC Agriculture 5.27 (2050)
- Emission Totals - Emissions (CO2eq) from CH4 (AR5) - Enteric 2.56 (2050)
- Emission Totals - Emissions (CO2eq) (AR5) - IPCC Agriculture 35.2 (2050)
- Emission Totals - Emissions (CO2eq) from CH4 (AR5) - IPCC Agriculture 29.94 (2050)
Frequently asked questions
- What is share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Cook Islands?
- Share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Cook Islands was 95.0% in 2025, according to WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data.
- What is the highest share of one-year-olds vaccinated against diphtheria, tetanus and pertussis recorded in Cook Islands?
- The highest recorded value was 99.0% in 1993.
- What is the lowest share of one-year-olds vaccinated against diphtheria, tetanus and pertussis recorded in Cook Islands?
- The lowest recorded value was 40.0% in 1980.
- How does Cook Islands rank for share of one-year-olds vaccinated against diphtheria, tetanus and pertussis?
- Cook Islands ranks 59th out of 195 countries with data for 2025.
- Is share of one-year-olds vaccinated against diphtheria, tetanus and pertussis rising or falling in Cook Islands?
- Over the last ten years it is down 4.0%. The long-run trend across the full record is rising.
- Where does this Cook Islands data come from?
- The figures come from WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Share of one-year-olds vaccinated against diphtheria, tetanus and pertussis. Statizoid updates them automatically from the source API.
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About this data
Share of one-year-olds who have had three doses of the combined diphtheria, tetanus and pertussis vaccine in a given year.