Skip to Main Content View Text-Only

To improve security, on Feb. 11th the city will begin disabling TLS 1.0 on our websites. This change should not impact you unless you are using an old browser. More information


Portland Water Bureau

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

Customer Service: 503-823-7770


More Contact Info

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 952,600 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 2016-17, the Water Bureau directly served a population of more than 584,000 people in 153,500 residential households (both single and multi-family residences) and 19,900 commercial and industrial customers.

Portland's wholesale customers served an estimated population of more than 342,000 in FY 2016-17.

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: November 2017)