Tuberculosis cases in Tonga
Tonga: Tuberculosis cases was 2 cases in 2024. ◆ Volatile
Tuberculosis cases in Tonga, 2000–2024
Source: WHO (2025) – with minor processing by Our World in Data. Measured in cases.
Analysis
In 2024, tuberculosis cases in Tonga stood at 2 cases. That is the lowest value across all 25 years on record.
That represents a change of down 75.0% on the previous year and down 84.6% over ten years.
Over the whole period, tuberculosis cases in Tonga peaked at 29 cases in 2002 and was at its lowest, 2 cases, in 2022.
That places Tonga 200th out of 215 countries with data for 2024, putting it in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Tuberculosis cases in Tonga, year by year
| Year | cases | Change |
|---|---|---|
| 2000 | 24 cases | — |
| 2001 | 12 cases | -50.0% |
| 2002 | 29 cases | +141.7% |
| 2003 | 16 cases | -44.8% |
| 2004 | 12 cases | -25.0% |
| 2005 | 18 cases | +50.0% |
| 2006 | 18 cases | +0.0% |
| 2007 | 23 cases | +27.8% |
| 2008 | 13 cases | -43.5% |
| 2009 | 8 cases | -38.5% |
| 2010 | 11 cases | +37.5% |
| 2011 | 9 cases | -18.2% |
| 2012 | 11 cases | +22.2% |
| 2013 | 10 cases | -9.1% |
| 2014 | 13 cases | +30.0% |
| 2015 | 14 cases | +7.7% |
| 2016 | 8 cases | -42.9% |
| 2017 | 11 cases | +37.5% |
| 2018 | 9 cases | -18.2% |
| 2019 | 10 cases | +11.1% |
| 2020 | 8 cases | -20.0% |
| 2021 | 7 cases | -12.5% |
| 2022 | 2 cases | -71.4% |
| 2023 | 8 cases | +300.0% |
| 2024 | 2 cases | -75.0% |
Tonga compared with similar countries
- Tonga's 2 cases is below the median for upper middle income countries, which is 3,700 cases, 0% of the median. (58 countries reporting)
- Tonga's 2 cases is below the median for East Asia & Pacific, which is 1,150 cases, 0% of the median. (36 countries reporting)
Biggest year-on-year movements
Years where Tuberculosis cases 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 |
|---|---|---|---|
| 2023 | +300.0% | 2 cases | 8 cases |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 17.3 cases | 8 cases | 29 cases | 10 |
| 2010s | 10.6 cases | 8 cases | 14 cases | 10 |
| 2020s | 5.4 cases | 2 cases | 8 cases | 5 |
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)
- 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)
Frequently asked questions
- What is tuberculosis cases in Tonga?
- Tuberculosis cases in Tonga was 2 cases in 2024, according to WHO (2025) – with minor processing by Our World in Data.
- What is the highest tuberculosis cases recorded in Tonga?
- The highest recorded value was 29 cases in 2002.
- What is the lowest tuberculosis cases recorded in Tonga?
- The lowest recorded value was 2 cases in 2022.
- How does Tonga rank for tuberculosis cases?
- Tonga ranks 200th out of 215 countries with data for 2024.
- Is tuberculosis cases rising or falling in Tonga?
- Over the last ten years it is down 84.6%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from WHO (2025) – with minor processing by Our World in Data, published as part of Tuberculosis cases. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 25 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
The estimated number of new and relapse tuberculosis cases arising in a given year. All forms of the disease are included, including cases in people living with HIV.