Almonds demand an extraordinary volume of water in California’s arid Central Valley, locking the state into a permanent, high-stakes thirst that annual crops can simply avoid.
Each almond kernel carries a water footprint of roughly 3.2 gallons. Scaled across more than a million acres of orchards, the crop consumes 4.7 to 5.7 million acre-feet annually—about 14–17 percent of the state’s agricultural water and roughly a tenth of its developed supply. That is comparable to the total indoor water use of every California household. Unlike tomatoes or cotton, which can be fallowed in a dry year, almond trees are permanent. Skip irrigation and the orchard dies, so the demand remains fixed no matter how little rain falls or how low the reservoirs sit.
Most of that water is pulled from underground aquifers when surface supplies run short. Decades of over-pumping have compacted the fine clay layers beneath the San Joaquin Valley. The land has sunk permanently—historically more than 20 feet in places, with some spots approaching 28–30 feet, and recent rates still reaching a foot per year in hotspots. Once the aquifer matrix collapses, the storage capacity is gone forever; the ground never rebounds. Roads buckle, canals crack and lose grade, bridges and pipelines require constant repair, and the very infrastructure that delivers water begins to fail.
The result is a self-reinforcing crisis: more wells drilled deeper, more irreversible subsidence, and a landscape literally collapsing under the weight of a single crop that now dominates the region’s water budget. The almond business has turned one of the world’s most productive farming valleys into a slowly sinking bowl, trading long-term soil and aquifer integrity for short-term nut exports.
The almond is fumigated with a probable carcinogen, drinks a tenth of California’s water, and left 1.6 million bee colonies dead last year. The milk is 2 per cent almonds. An almond sold as raw in America has been gassed with a chemical the drag racing associations banned for… pic.twitter.com/Z2ykwgZLvK
— Sama Hoole (@SamaHoole) August 14, 2026
California almonds use far more water than data centers—by a wide margin.
Almond water use (California)
California grows the vast majority (over 80%) of the world’s commercial almonds. Recent estimates put annual water use for the crop at 4.7–5.5 million acre-feet. One acre-foot is roughly 326,000 gallons, so this equals about 1.5–1.8 trillion gallons per year.
This is roughly equal to the total indoor residential water use of all California households. Almonds account for roughly 14–17% of the state’s agricultural developed water and a significant share of overall developed supply. Much of it comes from groundwater in the San Joaquin Valley, contributing to long-term aquifer depletion and land subsidence. Per-kernel figures commonly cited range from about 1–3.2 gallons depending on whether only irrigation or the full water footprint is counted; per-pound estimates are typically in the 500–650 gallon range.
Data center water use
U.S. data centers’ direct (onsite cooling) water consumption was about 17.4 billion gallons in 2023. Projections for 2028 range from roughly 38–73 billion gallons as AI and hyperscale capacity grow.
Even broader estimates that include indirect water used to generate the electricity powering the centers remain far lower than almond totals. One analysis of North American data centers (onsite + offsite) put the combined figure in the low hundreds of billions of gallons annually—still only a fraction of California almond use.
Individual large hyperscale facilities can use hundreds of thousands to a few million gallons per day (especially with evaporative cooling in hot climates), but many are shifting toward air cooling, closed-loop systems, liquid cooling, or non-potable/recycled water to reduce freshwater demand.
Direct comparison
California almonds alone* use roughly 4–7 times more water than every data center in North America combined (when including power-plant water for the centers), and 60–90+ times more* than onsite cooling water alone.
U.S. data-center direct use is a tiny share of national freshwater consumption (often cited around 0.2% or less in recent years) and is dwarfed by agriculture overall, residential outdoor use, golf courses in some regions, and other sectors.
Almond demand is largely fixed and consumptive (evapotranspiration by permanent orchards that cannot easily be fallowed). Data-center use is more flexible technologically and can improve rapidly with cooling design changes, though growth in AI workloads is driving absolute increases and creating localized pressure in water-stressed areas.
Bottom line: On absolute volume, almond production in California is a much larger water user than the entire U.S. (or North American) data-center sector. Data centers’ water footprint is real and growing—particularly in arid regions where new facilities cluster—but it remains small relative to a single major crop. Both face scrutiny for impacts in water-scarce basins, but the scales differ dramatically.
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