One serving = 4.5 oz
California, 2025: 9,800 bearing acres (USDA NASS).
Growing a pound of this crop takes about 20 gallons of water in California, compared with a world average of about 54 gallons: California uses 36 percent of the water the world average takes to grow the same pound.Mekonnen and Hoekstra (2011), green and blue water, California value regionalized
Applied water: California Department of Water Resources, California Water Plan crop-category applied water.
Acreage (bearing acres) and production: USDA National Agricultural Statistics Service, Quick Stats, California annual crop survey, 2025 crop year.
Serving size: USDA.
World comparison: Mekonnen, M.M. and Hoekstra, A.Y. (2011), The green, blue and grey water footprint of crops and derived crop products, Hydrology and Earth System Sciences 15; green and blue water, California value regionalized; item 'Grapefruit, fresh or dried'.
Figures as of September 25, 2026.
How to citeCalifornia Crop Water Fact Sheet: Grapefruit. conciseVerbosity, September 25, 2026. https://api.conciseverbosity.com/water-facts/grapefruit.html