Iowa Water Quality Reports

Comprehensive water quality data for 411 cities across Iowa. View EPA-verified contaminant levels and get filter recommendations.

411

Cities

4

Safe

318

Monitor

39

At Risk

6

Limited testing

44

No Test Data

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

Water Quality by County

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

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Data from 361 cities serving 2,060,380 people across 90 counties.

Common Contaminants in Iowa

338 cities in Iowa have at least one contaminant above EPA health guidelines.

Bromodichloromethane(291 cities)Dichloroacetic Acid (DCA)(230 cities)Bromoform(120 cities)Radium, combined (-226 & -228)(65 cities)Gross Alpha Activity(62 cities)Arsenic(33 cities)

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Cities in Iowa

Des Moines

People Served245K

92 results on file

Above Guidelines2

View Report →

Davenport

People Served148K

107 results on file

Above Guidelines3

View Report →

Cedar Rapids

People Served141K

135 results on file

Above Guidelines2

View Report →

Sioux City

People Served86K

84 results on file

Above Guidelines8

View Report →

Waterloo

People Served69K

94 results on file

Above Guidelines3

View Report →

Iowa City

People Served69K

71 results on file

Above Guidelines3

View Report →

West Des Moines

People Served69K

117 results on file

Above Guidelines2

View Report →

Ankeny

People Served68K

80 results on file

Above Guidelines3

View Report →

Council Bluffs

People Served64K

81 results on file

Above Guidelines2

View Report →

Dubuque

People Served60K

38 results on file

Above Guidelines3

View Report →

Ames

People Served55K

81 results on file

Above Guidelines3

View Report →

Urbandale

People Served46K

37 results on file

Above Guidelines3

View Report →

Marion

People Served42K

93 results on file

Above Guidelines2

View Report →

Cedar Falls

People Served41K

89 results on file

Above Guidelines2

View Report →

Burlington

People Served26K

73 results on file

Above Guidelines3

View Report →

Fort Dodge

People Served26K

23 contaminants listed, only PFAS results from EPA's UCMR 5 on file

Above Guidelines0

View Report →

Ottumwa

People Served26K

23 contaminants listed, only PFAS results from EPA's UCMR 5 on file

Above Guidelines0

View Report →

Johnston

People Served24K

36 results on file

Above Guidelines3

View Report →

Waukee

People Served24K

37 results on file

Above Guidelines3

View Report →

Muscatine

People Served24K

86 results on file

Above Guidelines4

View Report →

Coralville

People Served22K

39 results on file

Above Guidelines2

View Report →

North Liberty

People Served20K

75 results on file

Above Guidelines4

View Report →

Altoona

People Served20K

84 results on file

Above Guidelines3

View Report →

Clive

People Served19K

36 results on file

Above Guidelines3

View Report →

Newton

People Served17K

23 contaminants listed, only PFAS results from EPA's UCMR 5 on file

Above Guidelines0

View Report →

Indianola

People Served16K

41 results on file

Above Guidelines0

View Report →

Grimes

People Served15K

84 results on file

Above Guidelines1

View Report →

Norwalk

People Served13K

35 results on file

Above Guidelines2

View Report →

Boone

People Served12K

70 results on file

Above Guidelines2

View Report →

Oskaloosa

People Served12K

69 results on file

Above Guidelines3

View Report →

Storm Lake

People Served11K

53 results on file

Above Guidelines1

View Report →

Spencer

People Served11K

43 results on file

Above Guidelines3

View Report →

Fort Madison

People Served11K

43 results on file

Above Guidelines1

View Report →

Le Mars

People Served11K

40 results on file

Above Guidelines3

View Report →

Lemars

People Served11K

40 results on file

Above Guidelines3

View Report →

Pella

People Served10K

76 results on file

Above Guidelines5

View Report →

Waverly

People Served10K

89 results on file

Above Guidelines4

View Report →

Carroll

People Served10K

46 results on file

Above Guidelines2

View Report →

Keokuk

People Served10K

70 results on file

Above Guidelines3

View Report →

Grinnell

People Served10K

39 results on file

Above Guidelines2

View Report →

Fairfield

People Served9K

43 results on file

Above Guidelines2

View Report →

Mount Pleasant

People Served9K

70 results on file

Above Guidelines4

View Report →

Knoxville

People Served8K

46 results on file

Above Guidelines1

View Report →

Denison

People Served8K

37 results on file

Above Guidelines3

View Report →

Sioux Center

People Served8K

44 results on file

Above Guidelines3

View Report →

Perry

People Served8K

41 results on file

Above Guidelines1

View Report →

Webster City

People Served8K

91 results on file

Above Guidelines2

View Report →

Clear Lake

People Served8K

39 results on file

Above Guidelines2

View Report →

Bondurant

People Served8K

36 results on file

Above Guidelines3

View Report →

Creston

People Served8K

88 results on file

Above Guidelines3

View Report →

Charles City

People Served7K

40 results on file

Above Guidelines0

View Report →

Washington

People Served7K

23 contaminants listed, only PFAS results from EPA's UCMR 5 on file

Above Guidelines0

View Report →

Hiawatha

People Served7K

87 results on file

Above Guidelines3

View Report →

Nevada

People Served7K

39 results on file

Above Guidelines3

View Report →

Eldridge

People Served7K

40 results on file

Above Guidelines2

View Report →

Orange City

People Served6K

41 results on file

Above Guidelines3

View Report →

Spirit Lake

People Served6K

70 results on file

Above Guidelines2

View Report →

Asbury

People Served6K

86 results on file

Above Guidelines2

View Report →

Polk City

People Served6K

40 results on file

Above Guidelines2

View Report →

Sheldon

People Served6K

43 results on file

Above Guidelines5

View Report →

Glenwood

People Served5K

41 results on file

Above Guidelines4

View Report →

Centerville

People Served5K

23 contaminants listed, only PFAS results from EPA's UCMR 5 on file

Above Guidelines0

View Report →

Sergeant Bluff

People Served5K

40 results on file

Above Guidelines2

View Report →

Luther

People Served5K

38 results on file

Above Guidelines3

View Report →

Evansdale

People Served5K

83 results on file

Above Guidelines0

View Report →

Tiffin

People Served5K

20 results on file

Above Guidelines1

View Report →

Forest City

People Served4K

43 results on file

Above Guidelines3

View Report →

Huxley

People Served4K

41 results on file

Above Guidelines2

View Report →

Carlisle

People Served4K

39 results on file

Above Guidelines2

View Report →

West Liberty

People Served4K

81 results on file

Above Guidelines4

View Report →

Waukon

People Served4K

32 results on file

Above Guidelines3

View Report →

Carter Lake

People Served4K

36 results on file

Above Guidelines2

View Report →

Albia

People Served4K

37 results on file

Above Guidelines2

View Report →

Emmetsburg

People Served4K

45 results on file

Above Guidelines2

View Report →

Osage

People Served4K

90 results on file

Above Guidelines4

View Report →

Eagle Grove

People Served4K

82 results on file

Above Guidelines3

View Report →

New Hampton

People Served3K

80 results on file

Above Guidelines4

View Report →

Story City

People Served3K

39 results on file

Above Guidelines2

View Report →

Williamsburg

People Served3K

19 results on file

Above Guidelines2

View Report →

Milford

People Served3K

49 results on file

Above Guidelines2

View Report →

West Burlington

People Served3K

40 results on file

Above Guidelines3

View Report →

Tipton

People Served3K

17 results on file

Above Guidelines2

View Report →

Tama

People Served3K

19 results on file

Above Guidelines3

View Report →

Garner

People Served3K

19 results on file

Above Guidelines3

View Report →

Solon

People Served3K

61 results on file

Above Guidelines4

View Report →

Wilton

People Served3K

17 results on file

Above Guidelines2

View Report →

Onawa

People Served3K

68 results on file

Above Guidelines3

View Report →

Sibley

People Served3K

No contaminant results on file

Above Guidelines0

View Report →

Fairfax

People Served3K

No contaminant results on file

Above Guidelines0

View Report →

Clarion

People Served3K

21 results on file

Above Guidelines2

View Report →

Madrid

People Served3K

47 results on file

Above Guidelines3

View Report →

Grundy Center

People Served3K

1 result on file

Above Guidelines1

View Report →

Lake Panorama

People Served3K

21 results on file

Above Guidelines2

View Report →

Hawarden

People Served3K

13 results on file

Above Guidelines4

View Report →

Bloomfield

People Served3K

9 results on file

Above Guidelines2

View Report →

Missouri Valley

People Served3K

14 results on file

Above Guidelines4

View Report →

Eldora

People Served3K

10 results on file

Above Guidelines2

View Report →

Kalona

People Served3K

No contaminant results on file

Above Guidelines0

View Report →

Rock Rapids

People Served3K

No contaminant results on file

Above Guidelines0

View Report →

Center Point

People Served3K

6 results on file

Above Guidelines2

View Report →

Showing top 100 of 411 cities by population.

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

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