Lakes and rivers permanent water area change in Tonga

Tonga: Lakes and rivers permanent water area change was 208.3% in 2022. β—† Volatile

Latest (2022)
208.3%
Change on year
up 14.6%
World rank
16th
of 232 countries
All-time high
208.3%
in 2022
All-time low
-25.3%
in 2006
Years of data
18
2005–2022

Lakes and rivers permanent water area change in Tonga, 2005–2022

-500501001502002005201320222005: -23 %2006: -25.3 %2007: -9.4 %2008: -12.9 %2009: 6.4 %2010: 6.8 %2011: 9.4 %2012: -7.3 %2013: -19.3 %2014: -8.2 %2015: 3.4 %2016: 42.4 %2017: 83.2 %2018: 124 %2019: 139.8 %2020: 155 %2021: 181.7 %2022: 208.3 %

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

Analysis

The most recent figure for lakes and rivers permanent water area change in Tonga is 208.3%, measured in 2022. That is the highest value across all 18 years on record.

Compared with earlier readings it is up 14.6% on the previous year and up 2,966.2% over ten years.

Over the whole period, lakes and rivers permanent water area change in Tonga peaked at 208.3% in 2022 and was at its lowest, -25.3%, in 2006.

That places Tonga 16th out of 232 countries with data for 2022, putting it in the top 10%.

The series is highly variable year to year, so single readings are best treated with caution.

Averages by decade

DecadeAverage LowestHighest Years
2000s -12.8% -25.3% 6.4% 5
2010s 37.4% -19.3% 139.8% 10
2020s 181.7% 155.0% 208.3% 3

Countries ranked near Tonga

  1. 13 French Polynesia 255.2% compare
  2. 14 Kiribati 233.4% compare
  3. 15 Sudan 225.3% compare
  4. 17 Tuvalu 160.6% compare
  5. 18 Cook Islands 153.5% compare
  6. 19 Northern Mariana Islands 149.9% compare

See the full ranking of 274 places β†’

More environment data for Tonga

All data for Tonga β†’

Frequently asked questions

What is lakes and rivers permanent water area change in Tonga?
Lakes and rivers permanent water area change in Tonga was 208.3% in 2022, according to United Nations Statistics Division, SDG Global Database.
What is the highest lakes and rivers permanent water area change recorded in Tonga?
The highest recorded value was 208.3% in 2022.
What is the lowest lakes and rivers permanent water area change recorded in Tonga?
The lowest recorded value was -25.3% in 2006.
How does Tonga rank for lakes and rivers permanent water area change?
Tonga ranks 16th out of 232 countries with data for 2022.
Is lakes and rivers permanent water area change rising or falling in Tonga?
Over the last ten years it is up 2,966.2%. The long-run trend across the full record is volatile.
Where does this Tonga data come from?
The figures come from United Nations Statistics Division, SDG Global Database, published as part of Lakes and rivers permanent water area change (%). Statizoid updates them automatically from the source API.

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Lakes and rivers permanent water area change in Tonga. Statizoid, drawing on United Nations Statistics Division, SDG Global Database. Retrieved 16 August 2026, from https://environment.statizoid.com/stat/lakes-and-rivers-permanent-water-area-change-percent/tonga/

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About this data

Indicator
Lakes and rivers permanent water area change (%)
Unit
%
Source
United Nations Statistics Division, SDG Global Database
Licence
UN SDG Global Database (open, attribution requested)
Coverage
274 places, 4,930 data points, 2005–2022
Last refreshed