When comparing residential water use in the U.S., state of Arizona, and city of Tucson during 2015, Tucson fell slightly below the U.S. This represents about 86% of the total U.S. ![]() In 2010 the United States Geological Survey reported that an estimated 268 million people relied on public-supply water for their household use. Water is used for residential, agricultural, commercial, and industrial purposes, but our focus is on the residential sector. Water is a finite resource with constant pressure on its availability, especially in the western U.S., where rapid population growth, coupled with a decade-long drought, has placed additional pressure on an already strained resource. Currently, the last year of GPCD published data for the U.S. New Mexico and Texas tied for the lowest amount of residential water usage at 81 GPCD, while Idaho had the highest rate at 186 GPCD. All the western states, except Texas and New Mexico used more water per capita each day than the U.S. Arizonans used 146 GPCD in 2015, 63 more GPCD than the average for the U.S. When compared to the 10 western states, Arizona ranked eighth during 2015 in residential water use. By 2015, Tucson’s water usage had dropped below the U.S. than to the state of Arizona, with 94 gallons per capita per day (GPCD). ![]() In 2010, the city of Tucson had residential water usage rates closer to the U.S. The city of Tucson has dramatically reduced residential water usage during the past two decades. Read About Residential Water Use in Tucson, Arizona MSA
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