Environment

Is California water use increasing?

Produced by Aaron Mendelson & Chris Keller | Updated Sept. 7, 2016

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About the data: These charts show the daily per capita residential water use rate in California as calculated by the State Water Resources Control Board. The charts cover the Jan. 2017 reporting period, and are compared to the previous month unless specified. Since the per capita measure (which reflects gallons of water used per resident per day) does not take into account rainfall, temperature, humidity and population density, the State Water Resources Control Board discourages comparisons between water suppliers.

Central Coast

For the 31 agencies in this region the average daily water consumption by each residential customer decreased to 48.65 gallons in January 2017 compared to 50.07 gallons in December 2017. See how much water this region saved.

Colorado River

For the 14 agencies in this region the average daily water consumption by each residential customer decreased to 88.58 gallons in January 2017 compared to 114.46 gallons in December 2017. See how much water this region saved.

North Coast

For the 14 agencies in this region the average daily water consumption by each residential customer decreased to 50.48 gallons in January 2017 compared to 52.45 gallons in December 2017. See how much water this region saved.

North Lahontan

For the 5 agencies in this region the average daily water consumption by each residential customer increased to 59.99 gallons in January 2017 compared to 59.17 gallons in December 2017. See how much water this region saved.

Sacramento River

For the 41 agencies in this region the average daily water consumption by each residential customer increased to 68.99 gallons in January 2017 compared to 68.38 gallons in December 2017. See how much water this region saved.

San Francisco Bay

For the 47 agencies in this region the average daily water consumption by each residential customer decreased to 50.78 gallons in January 2017 compared to 51.02 gallons in December 2017. See how much water this region saved.

San Joaquin River

For the 27 agencies in this region the average daily water consumption by each residential customer decreased to 62.85 gallons in January 2017 compared to 64.98 gallons in December 2017. See how much water this region saved.

South Coast

For the 171 agencies in this region the average daily water consumption by each residential customer decreased to 56.44 gallons in January 2017 compared to 65.83 gallons in December 2017. See how much water this region saved.

South Lahontan

For the 17 agencies in this region the average daily water consumption by each residential customer decreased to 62.47 gallons in January 2017 compared to 73.90 gallons in December 2017. See how much water this region saved.

Tulare Lake

For the 28 agencies in this region the average daily water consumption by each residential customer decreased to 71.75 gallons in January 2017 compared to 82.29 gallons in December 2017. See how much water this region saved.

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