Share of terrestrial Key Biodiversity Areas that are protected in Tonga
Tonga: Share of terrestrial Key Biodiversity Areas that are protected was 26.1% in 2025. ▲ Rising
Share of terrestrial Key Biodiversity Areas that are protected in Tonga, 2000–2025
Source: BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data. Measured in %.
Analysis
The most recent figure for share of terrestrial key biodiversity areas that are protected in Tonga is 26.1%, measured in 2025. That is the highest value across all 26 years on record.
Compared with earlier readings it is unchanged over ten years.
Over the whole period, share of terrestrial key biodiversity areas that are protected in Tonga peaked at 26.1% in 2001 and was at its lowest, 13.0%, in 2000.
That places Tonga 181st out of 240 countries with data for 2025, putting it in the bottom quarter.
The long-run direction has been consistently rising across the 26 years of available data.
Share of terrestrial Key Biodiversity Areas that are protected in Tonga, year by year
| Year | % | Change |
|---|---|---|
| 2000 | 13.0% | — |
| 2001 | 26.1% | +100.4% |
| 2002 | 26.1% | +0.0% |
| 2003 | 26.1% | +0.0% |
| 2004 | 26.1% | +0.0% |
| 2005 | 26.1% | +0.0% |
| 2006 | 26.1% | +0.0% |
| 2007 | 26.1% | +0.0% |
| 2008 | 26.1% | +0.0% |
| 2009 | 26.1% | +0.0% |
| 2010 | 26.1% | +0.0% |
| 2011 | 26.1% | +0.0% |
| 2012 | 26.1% | +0.0% |
| 2013 | 26.1% | +0.0% |
| 2014 | 26.1% | +0.0% |
| 2015 | 26.1% | +0.0% |
| 2016 | 26.1% | +0.0% |
| 2017 | 26.1% | +0.0% |
| 2018 | 26.1% | +0.0% |
| 2019 | 26.1% | +0.0% |
| 2020 | 26.1% | +0.0% |
| 2021 | 26.1% | +0.0% |
| 2022 | 26.1% | +0.0% |
| 2023 | 26.1% | +0.0% |
| 2024 | 26.1% | +0.0% |
| 2025 | 26.1% | +0.0% |
Tonga compared with similar countries
- Tonga's 26.1% is below the median for upper middle income countries, which is 42.8%, 61% of the median. (57 countries reporting)
- Tonga's 26.1% is below the median for East Asia & Pacific, which is 38.5%, 68% of the median. (36 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 24.8% | 13.0% | 26.1% | 10 |
| 2010s | 26.1% | 26.1% | 26.1% | 10 |
| 2020s | 26.1% | 26.1% | 26.1% | 6 |
Countries ranked near Tonga
More environment data for Tonga
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.234 °C (2025)
- Temperature change 0.858 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 3.06 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 0.1689 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), annual 0 % change on previous year (2024)
Frequently asked questions
- What is share of terrestrial key biodiversity areas that are protected in Tonga?
- Share of terrestrial key biodiversity areas that are protected in Tonga was 26.1% in 2025, according to BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data.
- What is the highest share of terrestrial key biodiversity areas that are protected recorded in Tonga?
- The highest recorded value was 26.1% in 2001.
- What is the lowest share of terrestrial key biodiversity areas that are protected recorded in Tonga?
- The lowest recorded value was 13.0% in 2000.
- How does Tonga rank for share of terrestrial key biodiversity areas that are protected?
- Tonga ranks 181st out of 240 countries with data for 2025.
- Is share of terrestrial key biodiversity areas that are protected 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 BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data, published as part of Share of terrestrial Key Biodiversity Areas that are protected. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 26 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Average proportion of Terrestrial Key Biodiversity Areas (KBAs) covered by protected areas (%).