Water Service Area

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Depending on your location in Hillsboro, the water provider for your home or business is either the City of Hillsboro Water Department or the Tualatin Valley Water District. Both agencies work closely together to deliver high-value, reliable water service to all customers in Hillsboro.

City of Hillsboro Water Department

The Hillsboro Water Department serves water to the part of the City of Hillsboro that lies west of Cornelius Pass Road and south of Highway 26 (Sunset Highway). The Hillsboro Water Department also provides water to customers in western Washington County who live along Hillsboro's original service line.

Hillsboro Water Department customers living in the Butternut Creek neighborhood in South Hillsboro will temporarily be served fluoridated water from the Tualatin Valley Water District while construction is completed on the Hillsboro Water Department’s water pipeline in South Hillsboro.

Tualatin Valley Water District (TVWD)

TVWD serves those in the City of Hillsboro living east of Cornelius Pass Road. 

The maps below offer a closer look at the Hillsboro Water Department's service boundaries:

Hillsboro's In-Town Service Area
This is a map of Hillsboro's in-town water service area. For accessibility assistance or questions, please call the Water Department at 503-615-6702.


The Hillsboro Water Department's Western Washington County Service Area
Image of the Upper System Map 2013

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