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Browse Water Systems

10,030 public water systems in WA.

Public Water Systems Database

Browse 10,030 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.

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System Name PWSID State Type Population Served
NORTH BAINBRIDGE WATER CO WA5359994 Washington Community 5,490
WESTPORT WATER DEPARTMENT WA5395300 Washington Community 5,346
WAPATO WATERWORKS WA5392800 Washington Community 5,255
BOW HILL REST AREA WA53HD056 Washington Transient Non-Community 5,237
BOW HILL REST AREAS - DOT WA5322714 Washington Transient Non-Community 5,237
POINT EVANS WA5368065 Washington Community 5,211
CONNELL CITY OF WA5314600 Washington Community 5,150
GRAYS HARBOR CO WATER DIST 2 WA5329250 Washington Community 5,112
MINTERBROOK WA5354740 Washington Community 5,083
DEER PARK CITY OF WA5318500 Washington Community 5,045
KING COUNTY WATER DISTRICT #54 WA5339950 Washington Community 5,037
Mattawa City of WA5352000 Washington Community 5,015
SPOKANE BUSINESS & INDUSTRIAL PARK WA5383027 Washington Non-Transient Non-Community 5,000
SEATTLE PREMIUM OUTLET MALL 105300142 Washington Non-Transient Non-Community 5,000
MEDICAL LAKE CITY OF WA5353400 Washington Community 4,982
COLVILLE WATER DEPARTMENT WA5314200 Washington Community 4,955
OMAK CITY OF WA5363750 Washington Community 4,940
CAPE DISAPPOINTMENT STATE PARK WA53SP270 Washington Transient Non-Community 4,915
LONGMIRE WA53NP580 Washington Non-Transient Non-Community 4,871
SUN LAKES STATE PARK WA53SP920 Washington Transient Non-Community 4,858
GEE CREEK SB REST AREA WA53HD221 Washington Transient Non-Community 4,844
MORAN STATE PARK-MOUNTAIN LAKE WA53SP541 Washington Transient Non-Community 4,804
MORAN STATE PARK - SUMMIT LAKE WA5337350 Washington Transient Non-Community 4,803
GEE CREEK NB REST AREA WA53HD220 Washington Transient Non-Community 4,803
VINLAND WA5391923 Washington Community 4,801
MORAN STATE PARK-CASCADE LAKE WA53SP540 Washington Transient Non-Community 4,783
FORKS MUNICIPAL WATER DEPT WA5326000 Washington Community 4,744
WARDEN CITY OF WA5392850 Washington Community 4,674
Raymond Water Department WA5371500 Washington Community 4,620
LONG BEACH WATER DEPARTMENT WA5348000 Washington Community 4,592
BELFAIR WATER DISTRICT 1 WA5305350 Washington Community 4,432
SOUTH BAINBRIDGE WA5381451 Washington Community 4,414
KING COUNTY WATER DISTRICT #45 WA5339700 Washington Community 4,398
CASTLE ROCK MUNICIPAL WATER WA5311800 Washington Community 4,367
ORCHARD AVENUE IRRIGATION DIST 6 WA5364000 Washington Community 4,330
GOLDENDALE CITY OF WA5328450 Washington Community 4,314
PATTISON 500 WA5366578 Washington Community 4,302
EAST SPOKANE WATER DIST 1 WA5321650 Washington Community 4,285
GRANT COUNTY FAIRGROUND WA5329069 Washington Transient Non-Community 4,263
TRENTWOOD IRRIGATION DISTRICT 3 WA5389250 Washington Community 4,228
SUQUAMISH WA5386400 Washington Community 4,203
PARADISE WA53NP680 Washington Transient Non-Community 4,165
CRYSTAL MOUNTAIN INC WA5316400 Washington Community 4,154
IRVIN WATER DISTRICT #6 WA5336050 Washington Community 4,150
ENERGY DEPT OF/200E WA5341866 Washington Non-Transient Non-Community 4,130
WHITE SALMON CITY OF WA5396350 Washington Community 4,077
COUPEVILLE TOWN OF WA5315550 Washington Community 4,077
STEVENS PASS WATER SYSTEM WA5384245 Washington Non-Transient Non-Community 4,053
SKYWAY WATER & SEWER DISTRICT WA5315788 Washington Community 4,000
GRANGER WATER DEPARTMENT WA5329000 Washington Community 3,993