Average proportion of Terrestrial Key Biodiversity Areas (KBAs) in Tonga

Tonga: Average proportion of Terrestrial Key Biodiversity Areas (KBAs) was 26.1% in 2025. β–² Rising

Latest (2025)
26.1%
Change on year
unchanged
World rank
165th
of 215 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

01020302000201220252000: 13 %2001: 26.1 %2002: 26.1 %2003: 26.1 %2004: 26.1 %2005: 26.1 %2006: 26.1 %2007: 26.1 %2008: 26.1 %2009: 26.1 %2010: 26.1 %2011: 26.1 %2012: 26.1 %2013: 26.1 %2014: 26.1 %2015: 26.1 %2016: 26.1 %2017: 26.1 %2018: 26.1 %2019: 26.1 %2020: 26.1 %2021: 26.1 %2022: 26.1 %2023: 26.1 %2024: 26.1 %2025: 26.1 %

Source: United Nations Statistics Division, SDG Global Database. Measured in %.

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 165th of 215 countries on this measure, in the bottom quarter.

The long-run direction has been consistently rising across the 26 years of available data.

Averages by decade

DecadeAverage LowestHighest 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

  1. 162 Isle of Man 27.4% compare
  2. 163 Indonesia 26.3% compare
  3. 164 Andorra 26.2% compare
  4. 166 Ecuador 25.9% compare
  5. 167 Russian Federation 25.5% compare
  6. 168 Uzbekistan 25.0% compare

See the full ranking of 263 places β†’

More environment data for Tonga

All data for Tonga β†’

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 165th out of 215 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.

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Average proportion of Terrestrial Key Biodiversity Areas (KBAs) in Tonga. Statizoid, drawing on United Nations Statistics Division, SDG Global Database. Retrieved 17 August 2026, from https://environment.statizoid.com/stat/average-proportion-of-terrestrial-key-biodiversity-areas-kbas-covered-by-protected-areas/tonga/

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About this data

Indicator
Average proportion of Terrestrial Key Biodiversity Areas (KBAs) covered by protected areas (%)
Unit
%
Source
United Nations Statistics Division, SDG Global Database
Licence
UN SDG Global Database (open, attribution requested)
Coverage
263 places, 6,838 data points, 2000–2025
Last refreshed