Washington Water Quality Reports
Comprehensive water quality data for 443 cities across Washington. View EPA-verified contaminant levels and get filter recommendations.
443
Cities
46
Safe
355
Monitor
42
At Risk
Water Quality by County
Explore aggregated water quality scores across Washington counties. Scores are calculated based on EPA data and weighted by population.
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Data from 388 cities serving 40,486,635 people across 35 counties.
Common Contaminants in Washington
397 cities in Washington have at least one contaminant above EPA health guidelines.
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Upload my testCities in Washington
Tukwila
People Served1186K
Contaminants Tested590
Above Guidelines2
View Report โ
Lake Forest Park
People Served1093K
Contaminants Tested431
Above Guidelines2
View Report โ
Bryn Mawr-Skyway
People Served1081K
Contaminants Tested557
Above Guidelines2
View Report โ
Burien
People Served1081K
Contaminants Tested455
Above Guidelines2
View Report โ
Boulevard Park
People Served994K
Contaminants Tested233
Above Guidelines2
View Report โ
White Center
People Served994K
Contaminants Tested233
Above Guidelines2
View Report โ
Shoreline
People Served987K
Contaminants Tested233
Above Guidelines2
View Report โ
Seattle
People Served956K
Contaminants Tested354
Above Guidelines2
View Report โ
Federal Way
People Served507K
Contaminants Tested602
Above Guidelines3
View Report โ
Five Corners
People Served484K
Contaminants Tested416
Above Guidelines3
View Report โ
Hazel Dell
People Served484K
Contaminants Tested416
Above Guidelines3
View Report โ
Hockinson
People Served484K
Contaminants Tested416
Above Guidelines3
View Report โ
Orchards
People Served484K
Contaminants Tested416
Above Guidelines3
View Report โ
Redmond
People Served454K
Contaminants Tested465
Above Guidelines2
View Report โ
Vancouver
People Served406K
Contaminants Tested949
Above Guidelines3
View Report โ
Bothell
People Served391K
Contaminants Tested179
Above Guidelines1
View Report โ
Frederickson
People Served380K
Contaminants Tested586
Above Guidelines4
View Report โ
Parkland
People Served380K
Contaminants Tested587
Above Guidelines3
View Report โ
Minnehaha
People Served373K
Contaminants Tested197
Above Guidelines3
View Report โ
Alderton
People Served371K
Contaminants Tested587
Above Guidelines3
View Report โ
Issaquah
People Served367K
Contaminants Tested467
Above Guidelines4
View Report โ
Clover Creek
People Served365K
Contaminants Tested586
Above Guidelines3
View Report โ
Midland
People Served365K
Contaminants Tested586
Above Guidelines3
View Report โ
Spokane Valley
People Served363K
Contaminants Tested1852
Above Guidelines4
View Report โ
Bonney Lake
People Served357K
Contaminants Tested397
Above Guidelines2
View Report โ
Prairie Ridge
People Served357K
Contaminants Tested397
Above Guidelines2
View Report โ
Puyallup
People Served357K
Contaminants Tested639
Above Guidelines3
View Report โ
Kirkland
People Served351K
Contaminants Tested259
Above Guidelines2
View Report โ
Graham
People Served350K
Contaminants Tested561
Above Guidelines4
View Report โ
South Hill
People Served349K
Contaminants Tested401
Above Guidelines4
View Report โ
Summit View
People Served335K
Contaminants Tested402
Above Guidelines1
View Report โ
Summit
People Served335K
Contaminants Tested402
Above Guidelines1
View Report โ
Waller
People Served335K
Contaminants Tested402
Above Guidelines1
View Report โ
Orting
People Served330K
Contaminants Tested549
Above Guidelines1
View Report โ
Tehaleh
People Served329K
Contaminants Tested404
Above Guidelines1
View Report โ
Fircrest
People Served327K
Contaminants Tested403
Above Guidelines2
View Report โ
Fife Heights
People Served327K
Contaminants Tested387
Above Guidelines3
View Report โ
Prairie Heights
People Served326K
Contaminants Tested337
Above Guidelines2
View Report โ
Yarrow Point
People Served326K
Contaminants Tested204
Above Guidelines1
View Report โ
Tacoma
People Served322K
Contaminants Tested479
Above Guidelines1
View Report โ
Auburn
People Served320K
Contaminants Tested794
Above Guidelines3
View Report โ
Browns Point
People Served319K
Contaminants Tested218
Above Guidelines1
View Report โ
Dash Point
People Served319K
Contaminants Tested218
Above Guidelines1
View Report โ
McMillin
People Served319K
Contaminants Tested218
Above Guidelines1
View Report โ
Ruston
People Served319K
Contaminants Tested218
Above Guidelines1
View Report โ
University Place
People Served319K
Contaminants Tested218
Above Guidelines1
View Report โ
Kent
People Served288K
Contaminants Tested635
Above Guidelines3
View Report โ
Bellevue
People Served276K
Contaminants Tested203
Above Guidelines1
View Report โ
Town and Country
People Served275K
Contaminants Tested616
Above Guidelines4
View Report โ
Beaux Arts Village
People Served262K
Contaminants Tested172
Above Guidelines1
View Report โ
Clyde Hill
People Served262K
Contaminants Tested166
Above Guidelines1
View Report โ
Hunts Point
People Served262K
Contaminants Tested166
Above Guidelines1
View Report โ
Medina
People Served262K
Contaminants Tested166
Above Guidelines1
View Report โ
Union Hill-Novelty Hill
People Served261K
Contaminants Tested637
Above Guidelines4
View Report โ
Lynnwood
People Served261K
Contaminants Tested103
Above Guidelines1
View Report โ
Airway Heights
People Served254K
Contaminants Tested417
Above Guidelines4
View Report โ
Spokane
People Served253K
Contaminants Tested913
Above Guidelines4
View Report โ
Four Lakes
People Served245K
Contaminants Tested396
Above Guidelines4
View Report โ
Renton
People Served225K
Contaminants Tested709
Above Guidelines1
View Report โ
Mukilteo
People Served222K
Contaminants Tested103
Above Guidelines1
View Report โ
Clearview
People Served221K
Contaminants Tested237
Above Guidelines2
View Report โ
Maltby
People Served221K
Contaminants Tested237
Above Guidelines2
View Report โ
Bothell West
People Served198K
Contaminants Tested78
Above Guidelines1
View Report โ
Mill Creek East
People Served198K
Contaminants Tested106
Above Guidelines1
View Report โ
Mill Creek
People Served198K
Contaminants Tested106
Above Guidelines1
View Report โ
Alderwood Manor
People Served198K
Contaminants Tested66
Above Guidelines1
View Report โ
Bothell East
People Served198K
Contaminants Tested66
Above Guidelines1
View Report โ
Brier
People Served198K
Contaminants Tested66
Above Guidelines1
View Report โ
Lake Stickney
People Served198K
Contaminants Tested66
Above Guidelines1
View Report โ
Larch Way
People Served198K
Contaminants Tested66
Above Guidelines1
View Report โ
Martha Lake
People Served198K
Contaminants Tested66
Above Guidelines1
View Report โ
Meadowdale
People Served198K
Contaminants Tested66
Above Guidelines1
View Report โ
North Lynnwood
People Served198K
Contaminants Tested66
Above Guidelines1
View Report โ
Picnic Point
People Served198K
Contaminants Tested66
Above Guidelines1
View Report โ
Des Moines
People Served193K
Contaminants Tested425
Above Guidelines3
View Report โ
Lakeland North
People Served188K
Contaminants Tested384
Above Guidelines3
View Report โ
Everett
People Served170K
Contaminants Tested276
Above Guidelines1
View Report โ
Eastmont
People Served168K
Contaminants Tested418
Above Guidelines2
View Report โ
Tanglewilde
People Served161K
Contaminants Tested388
Above Guidelines5
View Report โ
Sisco Heights
People Served152K
Contaminants Tested646
Above Guidelines2
View Report โ
SeaTac
People Served143K
Contaminants Tested296
Above Guidelines1
View Report โ
Fern Prairie
People Served142K
Contaminants Tested414
Above Guidelines3
View Report โ
Battle Ground
People Served140K
Contaminants Tested387
Above Guidelines2
View Report โ
Cherry Grove
People Served140K
Contaminants Tested387
Above Guidelines2
View Report โ
Lewisville
People Served140K
Contaminants Tested387
Above Guidelines2
View Report โ
Venersborg
People Served140K
Contaminants Tested387
Above Guidelines2
View Report โ
Lake Cassidy
People Served133K
Contaminants Tested365
Above Guidelines2
View Report โ
Ridgefield
People Served129K
Contaminants Tested522
Above Guidelines2
View Report โ
Port Orchard
People Served125K
Contaminants Tested4288
Above Guidelines3
View Report โ
Milton
People Served125K
Contaminants Tested368
Above Guidelines3
View Report โ
Pacific
People Served124K
Contaminants Tested333
Above Guidelines3
View Report โ
Woodland
People Served123K
Contaminants Tested1855
Above Guidelines2
View Report โ
Fairwood
People Served121K
Contaminants Tested430
Above Guidelines2
View Report โ
Lakeland South
People Served117K
Contaminants Tested199
Above Guidelines3
View Report โ
Lake Morton-Berrydale
People Served111K
Contaminants Tested270
Above Guidelines3
View Report โ
Amboy
People Served111K
Contaminants Tested219
Above Guidelines2
View Report โ
Barberton
People Served111K
Contaminants Tested219
Above Guidelines2
View Report โ
Brush Prairie
People Served111K
Contaminants Tested219
Above Guidelines2
View Report โ
Dollars Corner
People Served111K
Contaminants Tested219
Above Guidelines2
View Report โ
Duluth
People Served111K
Contaminants Tested219
Above Guidelines2
View Report โ
Showing top 100 of 443 cities by population.
Use the search box above to find any city in Washington.
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