Ohio Water Quality Reports

Comprehensive water quality data for 646 cities across Ohio. View EPA-verified contaminant levels and get filter recommendations.

646

Cities

4

Safe

455

Monitor

120

At Risk

9

Limited testing

58

No Test Data

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Ohio water quality ranking EPA-certified testing labs Water utilities in Ohio

Water Quality by County

Explore aggregated water quality scores across Ohio counties. Scores are calculated based on EPA data and weighted by population.

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Data from 579 cities serving 9,293,551 people across 87 counties.

Common Contaminants in Ohio

568 cities in Ohio have at least one contaminant above EPA health guidelines.

Bromodichloromethane(551 cities)Dichloroacetic Acid (DCA)(445 cities)Bromoform(400 cities)Perfluorooctanoic acid(52 cities)Perfluorooctanesulfonic acid(49 cities)Gross Alpha Activity(47 cities)

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Cities in Ohio

Bratenahl

People Served1309K

125 results on file

Above Guidelines3

View Report →

Cleveland

People Served1309K

125 results on file

Above Guidelines3

View Report →

Cuyahoga Heights

People Served1309K

125 results on file

Above Guidelines3

View Report →

Fairview Park

People Served1309K

125 results on file

Above Guidelines3

View Report →

Linndale

People Served1309K

125 results on file

Above Guidelines3

View Report →

Newburgh Heights

People Served1309K

125 results on file

Above Guidelines3

View Report →

Blacklick Estates

People Served1278K

97 results on file

Above Guidelines4

View Report →

Brice

People Served1278K

97 results on file

Above Guidelines4

View Report →

Columbus

People Served1278K

97 results on file

Above Guidelines4

View Report →

Dublin

People Served1278K

97 results on file

Above Guidelines4

View Report →

Grandview Heights

People Served1278K

97 results on file

Above Guidelines4

View Report →

Grove City

People Served1278K

97 results on file

Above Guidelines4

View Report →

Hilliard

People Served1278K

97 results on file

Above Guidelines4

View Report →

Lincoln Village

People Served1278K

97 results on file

Above Guidelines4

View Report →

Marble Cliff

People Served1278K

97 results on file

Above Guidelines4

View Report →

Minerva Park

People Served1278K

97 results on file

Above Guidelines4

View Report →

New Albany

People Served1278K

97 results on file

Above Guidelines4

View Report →

Riverlea

People Served1278K

97 results on file

Above Guidelines4

View Report →

Upper Arlington

People Served1278K

97 results on file

Above Guidelines4

View Report →

Urbancrest

People Served1278K

97 results on file

Above Guidelines4

View Report →

Valleyview

People Served1278K

97 results on file

Above Guidelines4

View Report →

Whitehall

People Served1278K

97 results on file

Above Guidelines4

View Report →

Worthington

People Served1278K

97 results on file

Above Guidelines4

View Report →

Arlington Heights

People Served750K

84 results on file

Above Guidelines5

View Report →

Cincinnati

People Served750K

84 results on file

Above Guidelines5

View Report →

Delshire

People Served750K

84 results on file

Above Guidelines5

View Report →

Elmwood Place

People Served750K

84 results on file

Above Guidelines5

View Report →

Fairfax

People Served750K

84 results on file

Above Guidelines5

View Report →

Golf Manor

People Served750K

84 results on file

Above Guidelines5

View Report →

Madison Place

People Served750K

84 results on file

Above Guidelines5

View Report →

Salem Heights

People Served750K

84 results on file

Above Guidelines5

View Report →

Silverton

People Served750K

84 results on file

Above Guidelines5

View Report →

St. Bernard

People Served750K

84 results on file

Above Guidelines5

View Report →

Ottawa Hills

People Served480K

120 results on file

Above Guidelines3

View Report →

Toledo

People Served480K

120 results on file

Above Guidelines3

View Report →

Akron

People Served280K

112 results on file

Above Guidelines3

View Report →

Portage Lakes

People Served280K

112 results on file

Above Guidelines3

View Report →

Sawyerwood

People Served280K

112 results on file

Above Guidelines3

View Report →

Ostrander

People Served150K

79 results on file

Above Guidelines3

View Report →

Powell

People Served150K

79 results on file

Above Guidelines3

View Report →

Centerville

People Served148K

36 results on file

Above Guidelines5

View Report →

Drexel

People Served148K

36 results on file

Above Guidelines5

View Report →

Kettering

People Served148K

36 results on file

Above Guidelines5

View Report →

Moraine

People Served148K

36 results on file

Above Guidelines5

View Report →

Riverside

People Served148K

36 results on file

Above Guidelines5

View Report →

Youngstown

People Served148K

39 results on file

Above Guidelines3

View Report →

Clayton

People Served140K

132 results on file

Above Guidelines5

View Report →

Dayton

People Served140K

132 results on file

Above Guidelines5

View Report →

Fort McKinley

People Served140K

132 results on file

Above Guidelines5

View Report →

Vandalia

People Served140K

132 results on file

Above Guidelines5

View Report →

Wright-Patterson AFB

People Served140K

132 results on file

Above Guidelines5

View Report →

Amelia

People Served133K

87 results on file

Above Guidelines4

View Report →

Beckett Ridge

People Served113K

37 results on file

Above Guidelines2

View Report →

Millville

People Served113K

37 results on file

Above Guidelines2

View Report →

Williamsdale

People Served113K

37 results on file

Above Guidelines2

View Report →

Canton

People Served108K

111 results on file

Above Guidelines3

View Report →

Massillon

People Served96K

107 results on file

Above Guidelines2

View Report →

Perry Heights

People Served96K

107 results on file

Above Guidelines2

View Report →

Waite Hill

People Served78K

79 results on file

Above Guidelines2

View Report →

Mentor

People Served75K

110 results on file

Above Guidelines3

View Report →

Pheasant Run

People Served73K

36 results on file

Above Guidelines2

View Report →

Elyria

People Served68K

77 results on file

Above Guidelines3

View Report →

Lima

People Served66K

80 results on file

Above Guidelines3

View Report →

Lorain

People Served64K

82 results on file

Above Guidelines3

View Report →

Hamilton

People Served62K

110 results on file

Above Guidelines1

View Report →

Springfield

People Served61K

108 results on file

Above Guidelines3

View Report →

Struthers

People Served59K

81 results on file

Above Guidelines3

View Report →

Woodworth

People Served59K

81 results on file

Above Guidelines3

View Report →

Bolindale

People Served55K

79 results on file

Above Guidelines2

View Report →

Leavittsburg

People Served55K

79 results on file

Above Guidelines2

View Report →

Morgandale

People Served55K

79 results on file

Above Guidelines2

View Report →

Warren

People Served55K

79 results on file

Above Guidelines2

View Report →

Findlay

People Served54K

87 results on file

Above Guidelines3

View Report →

Lakewood

People Served52K

38 results on file

Above Guidelines2

View Report →

Mansfield

People Served51K

96 results on file

Above Guidelines3

View Report →

Newark

People Served50K

109 results on file

Above Guidelines3

View Report →

Cuyahoga Falls

People Served50K

76 results on file

Above Guidelines3

View Report →

Middletown

People Served49K

108 results on file

Above Guidelines4

View Report →

Marion

People Served46K

98 results on file

Above Guidelines2

View Report →

Fairfield

People Served45K

75 results on file

Above Guidelines3

View Report →

Delaware

People Served45K

79 results on file

Above Guidelines2

View Report →

Huber Heights

People Served43K

112 results on file

Above Guidelines4

View Report →

Darrtown

People Served43K

124 results on file

Above Guidelines3

View Report →

North Perry

People Served41K

78 results on file

Above Guidelines2

View Report →

Perry

People Served41K

78 results on file

Above Guidelines2

View Report →

New Boston

People Served40K

77 results on file

Above Guidelines5

View Report →

Portsmouth

People Served40K

77 results on file

Above Guidelines5

View Report →

Lancaster

People Served40K

112 results on file

Above Guidelines4

View Report →

Butlerville

People Served40K

77 results on file

Above Guidelines4

View Report →

Maineville

People Served40K

77 results on file

Above Guidelines4

View Report →

Marrow

People Served40K

77 results on file

Above Guidelines4

View Report →

Roachester

People Served40K

77 results on file

Above Guidelines4

View Report →

Ashtabula

People Served40K

125 results on file

Above Guidelines2

View Report →

Hunter

People Served39K

106 results on file

Above Guidelines4

View Report →

Westerville

People Served39K

112 results on file

Above Guidelines3

View Report →

Reynoldsburg

People Served38K

36 results on file

Above Guidelines3

View Report →

Beavercreek

People Served37K

109 results on file

Above Guidelines4

View Report →

Andersonville

People Served35K

77 results on file

Above Guidelines3

View Report →

Stow

People Served35K

37 results on file

Above Guidelines2

View Report →

Hanging Rock

People Served35K

74 results on file

Above Guidelines4

View Report →

Showing top 100 of 646 cities by population.

Use the search box above to find any city in Ohio.

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