Washington County, Oregon Water Systems

Washington County, Oregon

53 community water systems on record — 29 active, 24 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Oregon’s official records. Always confirm current status with Oregon before making decisions based on this information.

Community water systems in Washington County, Oregon

System name	City	Population served	Status
238TH ST WS-C/O RON D MILLER	HILLSBORO	60	Inactive
BANKS WATER DEPARTMENT	BANKS	2,070	Active
BEAVERTON, CITY OF	BEAVERTON	88,045	Active
CEDAR PARK MANOR MOBILE HOMES	TIGARD	37	Inactive
CORNELIUS, CITY OF	CORNELIUS	14,490	Active
COUNCIL BLUFFS MHP	S SAN FRANCISCO	100	Inactive
COUNTRY HAVEN MOBILE HOME PARK	HILLSBORO	250	Inactive
CROWN MOBILE HOME PARK	ST HELENS	42	Active
DRIFTWOOD MHP (WASH CO)	PORTLAND	84	Inactive
FIR GROVE HOMEOWNERS ASSN	HILLSBORO	450	Active
FOREST GROVE TRANSMISSION LINE	FOREST GROVE	300	Inactive
FOREST GROVE, CITY OF	FOREST GROVE	26,838	Active
GASTON, CITY OF	GASTON	625	Active
HERRON WATER SYSTEM	BEAVERTON	30	Inactive
HILLSBORO-BUTTERNUT CREEK	HILLSBORO	373	Inactive
HILLSBORO-CHERRY GROVE	HILLSBORO	1,628	Active
HILLSBORO, CITY OF	HILLSBORO	92,632	Active
HOICHI KURISU WATER SYSTEM	TIGARD	28	Inactive
JOINT WATER COMMISSION	HILLSBORO	0	Active
LA WATER CO-OP	GASTON	2,500	Active
LAMPLIGHTER WATER ASSOC INC	SHERWOOD	24	Inactive
LAUREL ACRES WATER CO INC	CORNELIUS	50	Active
LAURELWOOD WATER USERS	GASTON	200	Active
LOOPER MTN WATER DISTRICT	BEAVERTON	150	Inactive
METZGER WATER DISTRICT	PORTLAND	18,000	Inactive
MOBIL'LA VISTA COURT	TUALATIN	78	Inactive
NISQUALLY INDIAN RESERVATION	YELM (NISQUALLY COMM SYS)	100	Inactive
NORTH PLAINS WATER DEPARTMENT	NORTH PLAINS	3,663	Active
OLD SCHOLLS FARM LLC	HILLSBORO	9	Inactive
PARRETT MOUNTAIN VIEW ESTATES	SHERWOOD	155	Active
RAINBOW ENDS WATER SYSTEM	HILLSBORO	50	Active
RALEIGH WATER DISTRICT	PORTLAND	4,500	Active
RIVER PARK MOBILE HOMES	TIGARD	41	Inactive
ROBINS NEST MOBILE HOME PARK	TIGARD	28	Inactive
ROLLING GREENS WATER DISTRICT	CORNELIUS	213	Inactive
ROTH DEVELOPMENT	NEWBERG	27	Active
SHERWOOD, CITY OF	SHERWOOD	19,885	Active
SOUTH HILLS WATER SYSTEM	HILLSBORO	250	Active
SPRINGHILL WATER COMPANY	GASTON	35	Inactive
STAR SATELLITE IMPROV DIST	BANKS	400	Active
SUMMIT HILLS	GASTON	15	Inactive
SUNSET VIEW MHP	BANKS	25	Inactive
TIGARD, CITY OF	TIGARD	62,500	Active
TIMBER WATER ASSOCIATION	TIMBER	180	Active
TUALATIN INDUSTRIAL WTR DIST	PORTLAND	40	Inactive
TUALATIN VALLEY WATER DISTRICT	BEAVERTON	224,600	Active
TUALATIN, CITY OF	TUALATIN	28,106	Active
WEST LAUREL ACRES WATER CO	CORNELIUS	65	Active
WEST SHANNON SUB-%HARRY STEELE	SHERWOOD	22	Inactive
WEST SLOPE WATER DISTRICT	PORTLAND	11,000	Active
WESTVIEW MOBILE ESTATES	EUGENE	250	Active
WILLOW GLEN MOBILE HOME PARK	HUBBARD	100	Inactive
WOLSBORN FARMS WATER DISTRICT	HILLSBORO	90	Active