GoKawiilAug 24, 2026 • 5 min read
US data centers consumed an estimated 17 billion gallons of water in 2023, with electricity generation accounting for more than 80% of the total.
Source: The Register
US data centers used an estimated 17 billion gallons of water in 2023, roughly three times their consumption in 2014, according to a Congressional Research Service report published by the Library of Congress. The estimate covers a data-center buildout that was accelerating as demand for generative AI took off.
The number is not a complete national measurement. The federal government does not systematically track water consumption across the data-center industry, and much of the available information is collected by state and local agencies. Some municipal agreements also restrict disclosure of the rates and volumes charged to individual operators.
That makes the 17-billion-gallon figure an estimate rather than a facility-by-facility accounting. It also covers more than the water piped directly into server campuses.
Electricity is the larger water burden
The CRS distinguishes between direct water use, such as cooling equipment at a data center, and indirect water use associated with generating the electricity that powers it. Direct consumption represents a relatively small share of overall US water use—about 2%—but the report says indirect consumption through power generation accounts for more than 80% of a data center’s total water footprint.
AI systems are pushing operators toward denser deployments of specialized hardware. New AI halls generally consume more electricity than older server infrastructure, increasing their cooling requirements and the water associated with power production. The CRS data ends in 2023, the year the AI infrastructure boom began in earnest, so the report says consumption may have risen further since then.
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