Average proportion of Terrestrial Key Biodiversity Areas (KBAs) in Tonga
Tonga: Average proportion of Terrestrial Key Biodiversity Areas (KBAs) was 26.1% in 2025. ▲ Rising
Latest (2025)
26.1%
Change on year
unchanged
World rank
192nd
of 254 countries
All-time high
26.1%
in 2001
All-time low
13.0%
in 2000
Years of data
26
2000–2025
Average proportion of Terrestrial Key Biodiversity Areas (KBAs) in Tonga, 2000–2025
Source: United Nations Statistics Division, SDG Global Database.
Analysis
In 2025, average proportion of terrestrial key biodiversity areas (kbas) in Tonga stood at 26.1%. That is the highest value across all 26 years on record.
That represents a change of unchanged over ten years.
Over the whole period, average proportion of terrestrial key biodiversity areas (kbas) in Tonga peaked at 26.1% in 2001 and was at its lowest, 13.0%, in 2000.
Tonga ranks 192nd of 254 countries on this measure, in the bottom quarter.
The long-run direction has been consistently rising across the 26 years of available data.
Average proportion of Terrestrial Key Biodiversity Areas (KBAs) in Tonga, year by year
| Year | Value | 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 43.1%, 60% of the median. (54 countries reporting)
- Tonga's 26.1% is below the median for East Asia & Pacific, which is 40.0%, 65% of the median. (32 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 average proportion of terrestrial key biodiversity areas (kbas) in Tonga?
- Average proportion of terrestrial key biodiversity areas (kbas) in Tonga was 26.1% in 2025, according to United Nations Statistics Division, SDG Global Database.
- What is the highest average proportion of terrestrial key biodiversity areas (kbas) recorded in Tonga?
- The highest recorded value was 26.1% in 2001.
- What is the lowest average proportion of terrestrial key biodiversity areas (kbas) recorded in Tonga?
- The lowest recorded value was 13.0% in 2000.
- How does Tonga rank for average proportion of terrestrial key biodiversity areas (kbas)?
- Tonga ranks 192nd out of 254 countries with data for 2025.
- Is average proportion of terrestrial key biodiversity areas (kbas) 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 United Nations Statistics Division, SDG Global Database, published as part of Average proportion of Terrestrial Key Biodiversity Areas (KBAs) covered by protected areas (%). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 26 observations, free to reuse under UN SDG Global Database (open, attribution requested).