Inactivated first-dose polio vaccine (IPV1) immunization coverage in Tonga
Tonga: Inactivated first-dose polio vaccine (IPV1) immunization coverage was 94.0% in 2025. ▲ Rising
Inactivated first-dose polio vaccine (IPV1) immunization coverage in Tonga, 2015–2025
Source: World Health Organization, Global Health Observatory.
Analysis
The most recent figure for inactivated first-dose polio vaccine (ipv1) immunization coverage in Tonga is 94.0%, measured in 2025.
That represents a change of down 5.1% on the previous year and up 176.5% over ten years.
Over the whole period, inactivated first-dose polio vaccine (ipv1) immunization coverage in Tonga peaked at 99.0% in 2017 and was at its lowest, 34.0%, in 2015.
Tonga ranks 91st of 194 countries on this measure, in the middle of the range.
The long-run direction has been consistently rising across the 11 years of available data.
Inactivated first-dose polio vaccine (IPV1) immunization coverage in Tonga, year by year
| Year | Value | Change |
|---|---|---|
| 2015 | 34.0% | — |
| 2016 | 96.0% | +182.4% |
| 2017 | 99.0% | +3.1% |
| 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% |
| 2025 | 94.0% | -5.1% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 85.4% | 34.0% | 99.0% | 5 |
| 2020s | 98.2% | 94.0% | 99.0% | 6 |
Countries ranked near Tonga
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 inactivated first-dose polio vaccine (ipv1) immunization coverage in Tonga?
- Inactivated first-dose polio vaccine (ipv1) immunization coverage in Tonga was 94.0% in 2025, according to World Health Organization, Global Health Observatory.
- What is the highest inactivated first-dose polio vaccine (ipv1) immunization coverage recorded in Tonga?
- The highest recorded value was 99.0% in 2017.
- What is the lowest inactivated first-dose polio vaccine (ipv1) immunization coverage recorded in Tonga?
- The lowest recorded value was 34.0% in 2015.
- How does Tonga rank for inactivated first-dose polio vaccine (ipv1) immunization coverage?
- Tonga ranks 91st out of 194 countries with data for 2025.
- Is inactivated first-dose polio vaccine (ipv1) immunization coverage rising or falling in Tonga?
- Over the last ten years it is up 176.5%. The long-run trend across the full record is rising.
- Where does this Tonga data come from?
- The figures come from World Health Organization, Global Health Observatory, published as part of Inactivated first-dose polio vaccine (IPV1) immunization coverage among 1-year-olds (%) (WUENIC). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 11 observations, free to reuse under CC BY-NC-SA 3.0 IGO (WHO).