Tonga's forest cover was 12.4 % in 1994 and 12.4 % in 2023.
Tonga · Environment
Forests, air quality, land, water and protected areas.
10 indicators · 8 with data
Land
Tonga's forest area was 90 km in 1994 and 90 km in 2023.
Terrestrial protected areas (% of total land area)
% of land area
136th of 213 · 20th in East Asia & Pacific
Tonga's terrestrial protected areas (% of total land area) fell from 15.9 % in 2013 to 13.3 % in 2025.
Tonga's agricultural land (% of land area) rose from 44.4 % in 1994 to 48.6 % in 2023.
Tonga's arable land (% of land area) rose from 22.2 % in 1994 to 27.8 % in 2023.
Air
Tonga's air pollution (pm2.5) fell from 5.0 in 1994 to 4.7 in 2023.
Access
Tonga's safe drinking water rose from 29.2 % in 2000 to 29.6 % in 2024.
Tonga's safe sanitation fell from 38.4 % in 2000 to 31.2 % in 2024.
›No data available (2)
These indicators exist in the registry but no source reports a value for Tonga.