Lead Pipe Map

Lead pipes in Washington

Washington's 2,374 community water systems reported 237 lead and 6,686 galvanized-requiring-replacement service lines, plus 223,241 of unknown material. That ranks #35 among states for confirmed lead lines.

237Lead
6,686Galvanized, replace
223,241Unknown
112Systems with lead

0.3% of the service lines Washington utilities reported are lead or galvanized requiring replacement, well below the national share of 3.1%. 10% are still unidentified (national: 21%). The largest counts are in City of Spokane (1,001), City of Colfax Water Department (775), City of Brewster (567). 570 systems haven't reported counts yet.

Since 2025 Q1, reported lead and galvanized lines in Washington went from 7,294 to 6,923 (down 371). See which systems made the most progress.

Systems with confirmed lead lines (112)

Water systemLeadGalv.Unknown% leadPeople
City of SpokaneSpokane County01,00101.2%346,138
City of Colfax Water DepartmentWhitman County077572140%3,507
City of BrewsterOkanogan County0567083%3,843
North City Water DistrictKing County0459415.6%32,847
Granger Water DepartmentYakima County0272031%3,993
Weiler-Martin Tracts Water AssnGrant County02521095%1,163
Soos Creek Water & Sewer DistrictKing County024601.3%74,172
North Perry Ave Water DistrictKitsap County02403,6143.4%24,402
Stevens Co PUD - Deer LakeStevens County023241027%2,884
City of OakvilleGrays Harbor County0209052%1,325
City of LangleyIsland County0171020%1,416
Stevens Co PUD - Loon LakeStevens County0157019%2,487
City of EntiatChelan County01431825%1,730
King County Water District #20King County014101.3%48,469
Stevens Co PUD - SuncrestStevens County013806.3%7,484
Stevens Co PUD - Waitts LakeStevens County0120035%1,216
Manchester Water DistrictKitsap County011903.4%10,475
Longview Water DepartmentCowlitz County0108330.7%57,617
Uniontown Water WorksWhitman County098058%366
Wapato WaterworksYakima County09114338%5,255
City of West RichlandBenton County091041%21,231
Othello Country Club Water AssnAdams County860050%208
Wishram Water SystemKlickitat County18311335%599
City of KirklandKing County08200.6%69,243
City of SumnerPierce County0659473.1%16,438
City of Tieton Water DeptYakima County0582569.8%1,475
City of Quincy Water DepartmentGrant County0572142.0%8,415
Gig Harbor Water DeptPierce County04301.2%16,510
Colton Water DepartmentWhitman County043022%632
Yakima Golding Farms 1Yakima County0360100%90
Camano Water AssociationIsland County03503.0%2,592
Wanapum VillageGrant County340050%305
City of AnacortesSkagit County0327,8580.2%25,109
Vera Water & PowerSpokane County0311356%24,692
Royal City WaterGrant County03106.9%3,389
Century Water AssociationWhatcom County3000100%110
Benton City WaterBenton County0283982.4%5,626
Port Susan Terrace WaterIsland County0282842%48
Rainbow CourtBenton County0280100%120
Remolif AdditionKing County250050%76
Admiral Water Users AssnGrant County024050%74
Ryderwood Improvement & Service AsCowlitz County02307.8%434
Afc Ranch 1Douglas County11110100%217
Withrow Water WorksDouglas County022092%60
City of OrtingPierce County0205900.6%10,332
Whitworth Water District 2Spokane County01909.6%26,883
Skykomish Water DeptKing County0181956.9%324
Newhalem Water SystemWhatcom County213036%277
Badger Canyon Water AssnBenton County0150100%40
Ridgefield Public WorksClark County014024%21,225
Cosmopolis Water DepartmentGrays Harbor County0126011.6%1,812
Stevens Co PUD - AddyStevens County012016%253
Toutle Community Regional WaterCowlitz County01101.2%3,215
Union Gap WaterYakima County1001,6410.5%6,433
Lyman Water DepartmentSkagit County010945.5%705
Island Lake ManorMason County0105914%233
North Beach WaterPacific County01002.9%8,093
Graystone WSFranklin County010050%94
Cape Horn Maintenance CompanySkagit County90412.9%940
Winchester West Farmworker HousingGrant County90050%100
Algona Water DeptKing County088480.7%3,300
Marion Water Co INCPierce County081352.1%966
Klickitat Water SystemKlickitat County341203.7%551
Sunset West Water AssociationSkagit County34719%62
Lake Meridian Water DistrictKing County06179<0.1%24,231
King County Water District #125King County051,1940.1%21,904
Lake ArrowheadMason County051542.6%343
Town of LatahSpokane County05825.2%194
Skagit County PUD 1 Judy ResSkagit County050<0.1%111,415
City of Chelan Water DeptChelan County131,5950.1%9,425
UnionMason County042011.6%700
View Ridge HeightsMason County04853.7%271
Shangri-La Shores INCIsland County04177.1%56
Tyee Beach Water AssociationIsland County04143.7%158
Hillcrest Village Water Co INCIsland County1323.4%770
Vel View Water Dist 13Spokane County04013%77
City of Carnation Water SystemKing County037070.2%2,400
Glenwood Water SystemKlickitat County211891.2%629
Town of WatervilleDouglas County03350.5%1,140
Rhododendron PlaceMason County031613%70
City of MortonLewis County0300.4%2,147
Town of RosaliaWhitman County0301.0%831
Everson Water AssocWhatcom County0305.1%130
City of KalamaCowlitz County021,699<0.1%8,020
SpringwoodMason County02266.3%90
Town of Friday HarborSan Juan County0201.8%3,543
City of Gold BarSnohomish County0200.3%2,745
Carlyon Beach HomeownersThurston County0203.9%1,273
Hartstene PointeMason County2004.1%460
Taylor Bay Beach Club INCPierce County02050%175
Toutle River ViewCowlitz County02011%45
Cle Elum Water DepartmentKittitas County01991<0.1%2,213
City of TekoaWhitman County103420.2%1,076
Paradise Estates Water Dept INCLewis County012520.3%309
Ione Water DeptPend Oreille County102370.3%2,395
Lyle Water SystemKlickitat County102160.3%938
Rolling Hills-GlencairnIsland County011570.2%872
Cascade Vista HOASnohomish County01801.0%260
Maury Mutual Water CoKing County01771.0%233
Roosevelt Water SystemKlickitat County10571.1%219

Showing the 100 with the most. All Washington water systems

No confirmed lead, but unknown lines remain (614)

Water systemLeadGalv.Unknown% leadPeople
Alderwood Water DistrictSnohomish County0024,0020%245,715
Sammamish Plateau Water & SewerKing County0017,2130%79,362
Pasco Water DepartmentFranklin County0010,5500%115,102
SouthwoodPierce County009,8950%64,155
City of BellevueKing County009,7390%321,349
Modern Electric Water CoSpokane County005,1620%18,487
City of KelsoCowlitz County004,7460%15,775
West Sound Utility District #1Kitsap County004,1000%28,930
Hoquiam Water DepartmentGrays Harbor County003,8790%11,456
Skyway Water & SewerKing County003,4350%12,036
Ephrata Water DepartmentGrant County003,3160%8,718
City of SheltonMason County002,8810%15,273
Ellensburg Water DeptKittitas County002,8710%20,900
City of PuyallupPierce County002,6810%94,520
Parkland Light & Water CompanyPierce County002,6440%33,775
Toppenish Water DepartmentYakima County002,3090%13,382
City of Bainbridge IslandKitsap County002,3070%13,491
Enumclaw Water DepartmentKing County002,2600%23,276
City of GrandviewYakima County002,2360%11,010
City of SunnysideYakima County002,1380%17,194
Tukwila Water DepartmentKing County002,1100%36,298
Lakehaven Water and Sewer DistrictKing County002,0880%148,809
City of Port AngelesClallam County002,0520%28,067
Northshore Utility DistrictKing County002,0010%99,789
Colville Water DepartmentStevens County001,8610%4,945
City of BlaineWhatcom County001,7290%6,800
City of GoldendaleKlickitat County001,5870%4,314
Forks Municipal Water DeptClallam County001,4500%3,468
Camas Municipal Water Sewer SystemClark County001,3780%31,794
City of Stanwood Water DeptSnohomish County001,2400%17,586
ArtondalePierce County001,1970%5,828
City of ElmaGrays Harbor County001,1340%6,638
Port Susan Camp Club #1Marysville001,1300%1,500
Fruitland Mutual Water CompanyPierce County001,0570%15,313
Peacock HillPierce County001,0530%7,401
Naval Base Kitsap at BangorKitsap County001,0490%16,828
Shelter Bay Community INCSkagit County001,0170%2,212
City of ArlingtonSnohomish County009830%29,508
City of White SalmonKlickitat County009120%4,077
Water District 19King County008380%5,335
Cherokee Bay Community Club INCKing County008170%2,400
City of LeavenworthChelan County008100%11,041
Soap Lake Water DeptGrant County007960%2,399
Port Susan Camp Club #2Marysville007070%1,000
MinterbrookPierce County006930%5,083
Port Susan Camp Club #3Marysville006890%1,000
Point EvansPierce County006470%5,211
Scott LakeThurston County006460%1,604
Naval Air Station/Whidbey IslandIsland County006330%16,595
City of RoslynKittitas County006170%2,099

Showing 50. See all

No lead or unknown lines reported (263)

Systems serving 1,000 or more people. Systems without counts on file are listed as 0.

Water systemLeadGalv.Unknown% leadPeople
Seattle Public UtilitiesKing County0000%1,161,961
City of Tacoma Water DivisionPierce County0000%446,245
City of VancouverClark County0000%373,047
City of Everett Public Works Dept.Snohomish County0000%215,774
Kent Water DepartmentKing County0000%166,421
City of Redmond Water SystemKing County0000%163,335
Clark Public UtilitiesClark County000–153,526
City of Bellingham-Water DivisionWhatcom County0000%141,127
City of OlympiaThurston County0000%126,966
City of KennewickBenton County0000%118,164
City of Yakima Water DivisionYakima County0000%112,858
City of RentonKing County0000%108,091
City of AuburnKing County0000%107,655
City of RichlandBenton County0000%106,499
Lacey Water DepartmentThurston County0000%105,178
Highline Water DistrictKing County0000%100,170
Marysville UtilitiesSnohomish County0000%88,582
City of BremertonKitsap County0000%72,951
City of LynnwoodSnohomish County000–68,204
Sno PUD 1 - Lake StevensSnohomish County0000%67,710
Woodinville Water DistrictKing County0000%66,699
Silver Lake Water & Sewer DistrictSnohomish County0000%65,033
City of TumwaterThurston County0000%51,924
City of WenatcheeChelan County0000%43,690
Issaquah Water SystemKing County0000%43,584
Walla Walla Water DivisionWalla Walla County0000%42,959
Nob Hill Water AssociationYakima County0000%38,050
Firgrove Mutual INCPierce County0000%36,168
JBLM LewisPierce County0000%35,414
Spanaway Water CompanyPierce County0000%34,506
City of EdmondsSnohomish County0000%34,065
City of Bothell WaterKing County0000%33,643
City of Moses LakeGrant County0000%32,428
Mukilteo Water & Wastewater DistrSnohomish County0000%31,437
City of Pullman Water DepartmentWhitman County0000%31,315
City of Mercer IslandKing County0000%31,057
Fife Dept of Public WorksPierce County0000%29,091
Cedar River Water & Sewer DistrictKing County0000%28,671
Centralia Public Works - WaterLewis County0000%28,164
East Wenatchee Water DistrictDouglas County0000%26,519
City of Mountlake TerraceSnohomish County0000%26,402
Cross Valley Water DistrictSnohomish County0000%24,695
City of Oak HarborIsland County0000%23,675
King County Water District #49King County0000%23,492
City of AberdeenGrays Harbor County000–22,867
PUD #1 of Asotin CountyAsotin County0000%21,930
Washington State UniversityWhitman County0000%21,506
City of WashougalClark County0000%21,441
Consolidated Irrig Dist 19 System 2Spokane County0000%21,220
Snoqualmie WaterKing County0000%20,222

Showing the 50 largest. See all

Lead pipes in Washington cities

All Washington cities and towns · Lead pipes by county

Washington lead pipe questions

How many lead pipes are in Washington?

Washington's community water systems reported 237 lead service lines and 6,686 galvanized lines that must be replaced, for 6,923 in total. Another 223,241 lines are of unknown material.

Which Washington water systems have the most lead pipes?

City of Spokane (1,001), City of Colfax Water Department (775), City of Brewster (567). Counts are lead plus galvanized-requiring-replacement lines.

What share of Washington service lines are lead?

0.3% of reported service lines in Washington are lead or galvanized requiring replacement, well below the national figure of 3.1%. 10% are still unknown, compared with 21% nationally.

How do I find out if my Washington home has a lead service line?

Search for your water system or ZIP code above, then open your utility's address-level inventory map. You can also check the pipe where it enters your home with a scratch and magnet test.

Source: EPA SDWIS service line inventory, 2026 Q3. Smaller systems with no lead or unknown lines are omitted. See also national rankings.