fiscal year 2021; the fiscal year in Japan starts on April 1st and ends on March 31st of the following year
Supplementary notes
Including total water supply and water supply businesses.
The source does not provide an exact publication date. Date given here is the day of data access.
Citation formats
Volume of tap water supply Japan FY 2021, by source
In the fiscal year 2021, around *** billion cubic meters of the tap water supply came from dams in Japan, representing the largest source of tap water. Water from rivers followed, amounting to almost **** billion cubic meters of water. In the same year, the total tap water supply in Japan amounted to over ** billion cubic meters of water.
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JWWA. (June 17, 2024). Volume of tap water supply in Japan in fiscal year 2021, by source (in billion cubic meters) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 22, 2026, from /statistics/1218443/japan-tap-water-supply-volume-by-source/
JWWA. "Volume of tap water supply in Japan in fiscal year 2021, by source (in billion cubic meters)." Chart. June 17, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 22, 2026. /statistics/1218443/japan-tap-water-supply-volume-by-source/
JWWA. (2024). Volume of tap water supply in Japan in fiscal year 2021, by source (in billion cubic meters). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 22, 2026. /statistics/1218443/japan-tap-water-supply-volume-by-source/
JWWA. "Volume of Tap Water Supply in Japan in Fiscal Year 2021, by Source (in Billion Cubic Meters)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 17 Jun 2024, /statistics/1218443/japan-tap-water-supply-volume-by-source/
JWWA, Volume of tap water supply in Japan in fiscal year 2021, by source (in billion cubic meters) ÌÇÐÄÆƽâ°æ, /statistics/1218443/japan-tap-water-supply-volume-by-source/ (last visited July 22, 2026)
Volume of tap water supply in Japan in fiscal year 2021, by source (in billion cubic meters) [Graph], JWWA, June 17, 2024. [Online]. Available: /statistics/1218443/japan-tap-water-supply-volume-by-source/
