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Water use estimates for 2000 through 2020 are now available for the three largest categories of use in the United States: self-supplied thermoelectric power generation, self-supplied irrigation, and public supply.
This chart shows the trends in freshwater and saline-water withdrawals for the Nation from 1950 to 2015. What is remarkable about this chart is that it shows that the Nation's water use peaked in 1980 and has been fairly steady since then.
The average American family uses more than 300 gallons of water per day at home. Roughly 70 percent of this use occurs indoors. Nationally, outdoor water use accounts for 30 percent of household use yet can be much higher in drier parts of the country and in more water-intensive landscapes.
National water-use data are reported by source (surface water or groundwater, fresh and saline, and total), and category for the United States as a whole. The water-use data presented here are the current best estimates, and may have been revised from previous publications.
Freshwater use includes freshwater withdrawals for agriculture, industry, and municipal uses. This is shown in the chart. Rates of global freshwater use increased sharply from the 1950s onwards but since 2000 appear to be plateauing, or at least slowing.
For the first time, the U.S. Geological Survey is displaying the national compilation of water use data for every U.S. county. Explore the variety of water use across the U.S. to understand how we use our current resources.
Each American uses an average of 82 gallons of water a day at home (USGS, Estimated Use of Water in the United States in 2015). We can all use at least 20 percent less water by installing water-efficient fixtures and appliances.
The average American family uses more than 300 gallons of water per day at home. Roughly 70 percent of this use occurs indoors. Nationally, outdoor water use accounts for 30 percent of household use yet can be much higher in drier parts of the country and in more water-intensive landscapes.
The USGS has estimated water use for the United States every 5 years since 1950. Estimates are provided for groundwater and surface-water sources, for fresh and saline water quality, and by sector or category of use. Estimates have been made at the State level since 1950, and at the county level since 1985.
National water use for each year and by category are shown as bars above the timeline. Drag the timeline to see data for available years, click on total or specific water-use categories, then mouse over the States and the bars for water use values in million gallons of water per day (Mgal/d).