Reservoir minimum water area in Japan

Japan: Reservoir minimum water area was 999.86 kmsq in 2022. β–¬ Flat

Latest (2022)
999.86 kmsq
Change on year
down 0.1%
World rank
32nd
of 235 countries
All-time high
1,013 kmsq
in 2015
All-time low
988.23 kmsq
in 2003
Years of data
23
2000–2022

Reservoir minimum water area in Japan, 2000–2022

02505007501.0k2000201120222000: 990.2 kmsq2001: 990.6 kmsq2002: 990.4 kmsq2003: 988.2 kmsq2004: 998.2 kmsq2005: 998.8 kmsq2006: 999.3 kmsq2007: 1.0k kmsq2008: 1.0k kmsq2009: 1.0k kmsq2010: 1.0k kmsq2011: 1.0k kmsq2012: 1.0k kmsq2013: 1.0k kmsq2014: 1.0k kmsq2015: 1.0k kmsq2016: 1.0k kmsq2017: 1.0k kmsq2018: 1.0k kmsq2019: 1.0k kmsq2020: 997.9 kmsq2021: 1.0k kmsq2022: 999.9 kmsq

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

Analysis

In 2022, reservoir minimum water area in Japan stood at 999.86 kmsq.

The figure is down 0.1% on the previous year and down 0.7% over ten years.

Over the whole period, reservoir minimum water area in Japan peaked at 1,013 kmsq in 2015 and was at its lowest, 988.23 kmsq, in 2003.

That places Japan 32nd out of 235 countries with data for 2022, putting it in the top quarter.

Averages by decade

DecadeAverage LowestHighest Years
2000s 997.05 kmsq 988.23 kmsq 1,007 kmsq 10
2010s 1,008 kmsq 1,004 kmsq 1,013 kmsq 10
2020s 999.5 kmsq 997.92 kmsq 1,001 kmsq 3

Countries ranked near Japan

  1. 29 Malaysia 1,380 kmsq compare
  2. 30 Uruguay 1,337 kmsq compare
  3. 31 New Zealand 1,110 kmsq compare
  4. 33 Viet Nam 971.58 kmsq compare
  5. 34 Cameroon 927.48 kmsq compare
  6. 35 Iran (Islamic Republic of) 802.17 kmsq compare

See the full ranking of 277 places β†’

More environment data for Japan

All data for Japan β†’

Frequently asked questions

What is reservoir minimum water area in Japan?
Reservoir minimum water area in Japan was 999.86 kmsq in 2022, according to United Nations Statistics Division, SDG Global Database.
What is the highest reservoir minimum water area recorded in Japan?
The highest recorded value was 1,013 kmsq in 2015.
What is the lowest reservoir minimum water area recorded in Japan?
The lowest recorded value was 988.23 kmsq in 2003.
How does Japan rank for reservoir minimum water area?
Japan ranks 32nd out of 235 countries with data for 2022.
Is reservoir minimum water area rising or falling in Japan?
Over the last ten years it is down 0.7%. The long-run trend across the full record is flat.
Where does this Japan data come from?
The figures come from United Nations Statistics Division, SDG Global Database, published as part of Reservoir minimum water area (square kilometres). Statizoid updates them automatically from the source API.

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Reservoir minimum water area in Japan. Statizoid, drawing on United Nations Statistics Division, SDG Global Database. Retrieved 15 August 2026, from https://environment.statizoid.com/stat/reservoir-minimum-water-area-square-kilometres/japan/

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About this data

Indicator
Reservoir minimum water area (square kilometres)
Unit
kmsq
Source
United Nations Statistics Division, SDG Global Database
Licence
UN SDG Global Database (open, attribution requested)
Coverage
277 places, 6,369 data points, 2000–2022
Last refreshed