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 August 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 49.76 gallons in August 2017 compared to 52.36 gallons in July 2017.

Colorado River

For the 15 agencies in this region the average daily water consumption by each residential customer increased to 114.56 gallons in August 2017 compared to 111.52 gallons in July 2017.

North Coast

For the 15 agencies in this region the average daily water consumption by each residential customer decreased to 51.95 gallons in August 2017 compared to 52.47 gallons in July 2017.

North Lahontan

For the 5 agencies in this region the average daily water consumption by each residential customer decreased to 59.13 gallons in August 2017 compared to 61.57 gallons in July 2017.

Sacramento River

For the 42 agencies in this region the average daily water consumption by each residential customer increased to 68.92 gallons in August 2017 compared to 68.41 gallons in July 2017.

San Francisco Bay

For the 46 agencies in this region the average daily water consumption by each residential customer increased to 50.62 gallons in August 2017 compared to 50.58 gallons in July 2017.

San Joaquin River

For the 25 agencies in this region the average daily water consumption by each residential customer decreased to 64.67 gallons in August 2017 compared to 66.38 gallons in July 2017.

South Coast

For the 173 agencies in this region the average daily water consumption by each residential customer decreased to 65.87 gallons in August 2017 compared to 69.63 gallons in July 2017.

South Lahontan

For the 17 agencies in this region the average daily water consumption by each residential customer increased to 73.97 gallons in August 2017 compared to 73.89 gallons in July 2017.

Tulare Lake

For the 28 agencies in this region the average daily water consumption by each residential customer increased to 81.85 gallons in August 2017 compared to 76.28 gallons in July 2017.

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