Share of one-year-olds vaccinated against measles in Tonga
Tonga: Share of one-year-olds vaccinated against measles was 99.0% in 2024. ▲ Rising
Latest (2024)
99.0%
Change on year
unchanged
World rank
1st
of 194 countries
All-time high
99.0%
in 2003
All-time low
9.0%
in 1981
Years of data
44
1981–2024
Share of one-year-olds vaccinated against measles in Tonga, 1981–2024
Source: WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in %.
Analysis
In 2024, share of one-year-olds vaccinated against measles in Tonga stood at 99.0%. That is the highest value across all 44 years on record.
That represents a change of unchanged over ten years.
Over the whole period, share of one-year-olds vaccinated against measles in Tonga peaked at 99.0% in 2003 and was at its lowest, 9.0%, in 1981.
Tonga ranks 1st of 194 countries on this measure, in the top 10%.
The long-run direction has been consistently rising across the 44 years of available data.
Share of one-year-olds vaccinated against measles in Tonga, year by year
| Year | % | Change |
|---|---|---|
| 1981 | 9.0% | — |
| 1982 | 44.0% | +388.9% |
| 1983 | 67.0% | +52.3% |
| 1984 | 43.0% | -35.8% |
| 1985 | 81.0% | +88.4% |
| 1986 | 37.0% | -54.3% |
| 1987 | 88.0% | +137.8% |
| 1988 | 81.0% | -8.0% |
| 1989 | 84.0% | +3.7% |
| 1990 | 86.0% | +2.4% |
| 1991 | 90.0% | +4.7% |
| 1992 | 87.0% | -3.3% |
| 1993 | 87.0% | +0.0% |
| 1994 | 86.0% | -1.1% |
| 1995 | 94.0% | +9.3% |
| 1996 | 95.0% | +1.1% |
| 1997 | 97.0% | +2.1% |
| 1998 | 96.0% | -1.0% |
| 1999 | 97.0% | +1.0% |
| 2000 | 95.0% | -2.1% |
| 2001 | 93.0% | -2.1% |
| 2002 | 90.0% | -3.2% |
| 2003 | 99.0% | +10.0% |
| 2004 | 99.0% | +0.0% |
| 2005 | 99.0% | +0.0% |
| 2006 | 99.0% | +0.0% |
| 2007 | 99.0% | +0.0% |
| 2008 | 99.0% | +0.0% |
| 2009 | 99.0% | +0.0% |
| 2010 | 99.0% | +0.0% |
| 2011 | 99.0% | +0.0% |
| 2012 | 95.0% | -4.0% |
| 2013 | 99.0% | +4.2% |
| 2014 | 99.0% | +0.0% |
| 2015 | 99.0% | +0.0% |
| 2016 | 98.0% | -1.0% |
| 2017 | 99.0% | +1.0% |
| 2018 | 99.0% | +0.0% |
| 2019 | 99.0% | +0.0% |
| 2020 | 99.0% | +0.0% |
| 2021 | 99.0% | +0.0% |
| 2022 | 99.0% | +0.0% |
| 2023 | 99.0% | +0.0% |
| 2024 | 99.0% | +0.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 59.3% | 9.0% | 88.0% | 9 |
| 1990s | 91.5% | 86.0% | 97.0% | 10 |
| 2000s | 97.1% | 90.0% | 99.0% | 10 |
| 2010s | 98.5% | 95.0% | 99.0% | 10 |
| 2020s | 99.0% | 99.0% | 99.0% | 5 |
Countries ranked near Tonga
- 1 Bahrain 99.0% compare
- 1 Brunei Darussalam 99.0% compare
- 1 Cook Islands 99.0% compare
- 1 Cuba 99.0% compare
- 1 Cyprus 99.0% compare
- 1 Guyana 99.0% compare
- 1 Hungary 99.0% compare
- 1 Iran 99.0% compare
- 1 Jordan 99.0% compare
- 1 Luxembourg 99.0% compare
- 1 Maldives 99.0% compare
- 1 Niue 99.0% compare
- 1 North Korea 99.0% compare
- 1 Oman 99.0% compare
- 1 Portugal 99.0% compare
- 1 Qatar 99.0% compare
- 1 Saint Vincent and the Grenadines 99.0% compare
- 1 Sri Lanka 99.0% compare
- 1 Turkmenistan 99.0% compare
- 1 Uzbekistan 99.0% compare
More health data for Tonga
- Un projection of annual infant deaths, annual growth rate -33.33 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 2.33 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 834.5 deaths per 1,000 people (2090)
- Number of infants who die before age 1 2 deaths (2100)
- Population ages 0-14, female, annual growth rate -1.67 % change on previous year (2025)
- Population ages 0-14, female, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 0-14, female, per capita 0.1688 units per person (2025)
- Population ages 0-14, male, annual growth rate -1.88 % change on previous year (2025)
- Population ages 0-14, male, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 0-14, male, per capita 0.1804 units per person (2025)
Frequently asked questions
- What is share of one-year-olds vaccinated against measles in Tonga?
- Share of one-year-olds vaccinated against measles in Tonga was 99.0% 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 vaccinated against measles recorded in Tonga?
- The highest recorded value was 99.0% in 2003.
- What is the lowest share of one-year-olds vaccinated against measles recorded in Tonga?
- The lowest recorded value was 9.0% in 1981.
- How does Tonga rank for share of one-year-olds vaccinated against measles?
- Tonga ranks 1st out of 194 countries with data for 2024.
- Is share of one-year-olds vaccinated against measles rising or falling in Tonga?
- Over the last ten years it is unchanged. The long-run trend across the full record is rising.
- Where does this Tonga 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 vaccinated against measles. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 44 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Share of one-year-olds who have had the first dose of the measles vaccine in a given year.