Polio vaccine coverage of one year olds in Tonga
Tonga: Polio vaccine coverage of one year olds was 99 in 2024. ▲ Rising
Polio vaccine coverage of one year olds in Tonga, 1980–2024
Source: Our World in Data.
Analysis
In 2024, polio vaccine coverage of one year olds in Tonga stood at 99. That is the highest value across all 45 years on record.
The figure is up 1.0% over ten years.
Over the whole period, polio vaccine coverage of one year olds in Tonga peaked at 99 in 1992 and was at its lowest, 20, in 1980.
Tonga ranks 1st of 194 countries on this measure, in the top 10%.
The long-run direction has been consistently rising across the 45 years of available data.
Polio vaccine coverage of one year olds in Tonga, year by year
| Year | Value | Change |
|---|---|---|
| 1980 | 20 | — |
| 1981 | 37 | +85.0% |
| 1982 | 80 | +116.2% |
| 1983 | 57 | -28.7% |
| 1984 | 46 | -19.3% |
| 1985 | 81 | +76.1% |
| 1986 | 73 | -9.9% |
| 1987 | 87 | +19.2% |
| 1988 | 92 | +5.7% |
| 1989 | 93 | +1.1% |
| 1990 | 93 | +0.0% |
| 1991 | 92 | -1.1% |
| 1992 | 99 | +7.6% |
| 1993 | 96 | -3.0% |
| 1994 | 90 | -6.2% |
| 1995 | 93 | +3.3% |
| 1996 | 99 | +6.5% |
| 1997 | 96 | -3.0% |
| 1998 | 97 | +1.0% |
| 1999 | 94 | -3.1% |
| 2000 | 95 | +1.1% |
| 2001 | 95 | +0.0% |
| 2002 | 90 | -5.3% |
| 2003 | 98 | +8.9% |
| 2004 | 99 | +1.0% |
| 2005 | 99 | +0.0% |
| 2006 | 99 | +0.0% |
| 2007 | 99 | +0.0% |
| 2008 | 99 | +0.0% |
| 2009 | 99 | +0.0% |
| 2010 | 99 | +0.0% |
| 2011 | 99 | +0.0% |
| 2012 | 95 | -4.0% |
| 2013 | 99 | +4.2% |
| 2014 | 98 | -1.0% |
| 2015 | 96 | -2.0% |
| 2016 | 96 | +0.0% |
| 2017 | 99 | +3.1% |
| 2018 | 99 | +0.0% |
| 2019 | 99 | +0.0% |
| 2020 | 99 | +0.0% |
| 2021 | 99 | +0.0% |
| 2022 | 99 | +0.0% |
| 2023 | 99 | +0.0% |
| 2024 | 99 | +0.0% |
Tonga compared with similar countries
- Tonga's 99 is above the median for upper middle income countries, which is 89, 1.1× the median. (58 countries reporting)
- Tonga's 99 is above the median for East Asia & Pacific, which is 90, 1.1× the median. (30 countries reporting)
Biggest year-on-year movements
Years where Polio vaccine coverage of one year olds in Tonga 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 |
|---|---|---|---|
| 1982 | +116.2% | 37 | 80 |
| 1981 | +85.0% | 20 | 37 |
| 1985 | +76.1% | 46 | 81 |
| 1983 | -28.7% | 80 | 57 |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 66.6 | 20 | 93 | 10 |
| 1990s | 94.9 | 90 | 99 | 10 |
| 2000s | 97.2 | 90 | 99 | 10 |
| 2010s | 97.9 | 95 | 99 | 10 |
| 2020s | 99 | 99 | 99 | 5 |
Countries ranked near Tonga
- 1 Antigua and Barbuda 99 compare
- 1 Bhutan 99 compare
- 1 Brunei 99 compare
- 1 Costa Rica 99 compare
- 1 Cuba 99 compare
- 1 Guyana 99 compare
- 1 Hungary 99 compare
- 1 Iran 99 compare
- 1 Kuwait 99 compare
- 1 Luxembourg 99 compare
- 1 Maldives 99 compare
- 1 Monaco 99 compare
- 1 Niue 99 compare
- 1 Oman 99 compare
- 1 Portugal 99 compare
- 1 Saint Vincent and the Grenadines 99 compare
- 1 Turkey 99 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)
- Un projection of annual infant deaths 2 (2100)
- Neonatal tetanus - number of reported cases, gaps filled 0 (2025)
- Population ages 00-04, female, annual growth rate -1.42 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.0535 units per person (2025)
- Population ages 00-04, male, annual growth rate -1.36 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, male, per capita 0.0578 units per person (2025)
Frequently asked questions
- What is polio vaccine coverage of one year olds in Tonga?
- Polio vaccine coverage of one year olds in Tonga was 99 in 2024, according to Our World in Data.
- What is the highest polio vaccine coverage of one year olds recorded in Tonga?
- The highest recorded value was 99 in 1992.
- What is the lowest polio vaccine coverage of one year olds recorded in Tonga?
- The lowest recorded value was 20 in 1980.
- How does Tonga rank for polio vaccine coverage of one year olds?
- Tonga ranks 1st out of 194 countries with data for 2024.
- Is polio vaccine coverage of one year olds rising or falling in Tonga?
- Over the last ten years it is up 1.0%. The long-run trend across the full record is rising.
- Where does this Tonga data come from?
- The figures come from Our World in Data, published as part of Polio vaccine coverage of one year olds. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 45 observations, free to reuse under CC BY 4.0 (Our World in Data).