City of Hillsboro, OR
Home MenuYour Drinking Water
The City of Hillsboro Water Department proudly serves clean, high-quality water and promotes its efficient use to more than 93,000 people in the City of Hillsboro and surrounding rural areas.
The Hillsboro Water Department serves non-fluoridated water to in-town customers located west of Cornelius Pass Road and south of Highway 26 (Sunset Highway), upper-system customers in western Washington County along Hillsboro’s original water service line, and three wholesale customers, which include the cities of Cornelius and Gaston, and the L.A. Water Cooperative.
Every drop of water that runs through customers’ taps comes out of a river, or a dam and reservoir. Hillsboro’s primary water source is the upper-Tualatin River and its tributaries. Hillsboro Water has partnered with the Tualatin Valley Water District and the City of Beaverton to develop the Willamette River at Wilsonville as an additional water supply source.
Hillsboro Water carefully manages drinking water rates and strives to ensure equity and affordability for all customers. Water rates are designed so that all customers — including residential, commercial, and industrial users — pay their fair share based on how they use the City’s water system and how much water they use.
Learn More
