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Portland Water Bureau

From forest to faucet, we deliver the best drinking water in the world.


1120 SW Fifth Ave, Suite 600, Portland, OR 97204

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Population & Service Area

  • Columbia South Shore Well Field Portland is fortunate to have a reliable and high quality supplemental source of water.

  • Seasonal Water Supply Planning The Water Bureau plans for seasonal changes in weather and long term supply planning.

  • Portland's Regional Water System Map Communities outside the city boundary are wholesale customers.

  • Portland's Water Demand goes Beyond City Limits The Water Bureau's service area includes several suburb cities who are wholesale customers.

Portland's service area covers parts of Multnomah, Washington, and Clackamas counties in Oregon.

The Portland water system serves drinking water to more than 966,600 Oregonians, almost one-quarter of the population of Oregon. The Portland Water Bureau’s retail and wholesale service area is approximately 225 square miles. Of that, Portland’s current retail service area is approximately 143.3 square miles.

In FY 2015-16, the Water Bureau directly served a population of more than 597,400 people in 164,500 residential households (both single and multi-family residences) and 19,800 commercial and industrial customers.

Portland's wholesale customers served an estimated population of more than 369,200 in FY 2015-16.

Service Area Map

Posted: April 2016

Water System Statistics: Demand & Consumption History

Water production and customer consumption data for Fiscal Years 2010-11 through 2015-16 (Updated: October 2016)