Wyoming Water Quality Reports

Comprehensive water quality data for 79 cities across Wyoming. View EPA-verified contaminant levels and get filter recommendations.

79

Cities

2

Safe

41

Monitor

19

At Risk

2

Limited testing

15

No Test Data

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

Water Quality by County

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

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Data from 61 cities serving 250,517 people across 22 counties.

Common Contaminants in Wyoming

54 cities in Wyoming have at least one contaminant above EPA health guidelines.

Bromodichloromethane(32 cities)Dichloroacetic Acid (DCA)(28 cities)Radium, combined (-226 & -228)(25 cities)Gross Alpha (Excl. Radon and Uranium)(22 cities)Uranium(18 cities)Bromoform(15 cities)

Worried about Bromodichloromethane in your water?

Upload your water test (PDF or a photo) and we'll email a plain-English reading of your Bromodichloromethane result — and every other number — free. Educational only, no medical claims.

Your upload also helps us keep local water data accurate — we only ever share anonymized, area-level summaries.

Cities in Wyoming

Cheyenne

People Served64K

101 results on file

Above Guidelines3

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Casper

People Served59K

28 contaminants listed, only bacteria and PFAS results on file

Above Guidelines0

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Gillette

People Served32K

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

Above Guidelines0

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Rock Springs

People Served24K

37 results on file

Above Guidelines2

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Sheridan

People Served23K

104 results on file

Above Guidelines2

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Evanston

People Served12K

108 results on file

Above Guidelines2

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Green River

People Served11K

37 results on file

Above Guidelines2

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Riverton

People Served10K

156 results on file

Above Guidelines4

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Cody

People Served10K

37 results on file

Above Guidelines2

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Jackson

People Served10K

114 results on file

Above Guidelines5

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Lander

People Served8K

109 results on file

Above Guidelines2

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Torrington

People Served7K

113 results on file

Above Guidelines6

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Powell

People Served6K

37 results on file

Above Guidelines2

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Worland

People Served5K

69 results on file

Above Guidelines0

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Buffalo

People Served4K

107 results on file

Above Guidelines3

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Mills

People Served4K

105 results on file

Above Guidelines4

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Wheatland

People Served4K

111 results on file

Above Guidelines4

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Newcastle

People Served4K

104 results on file

Above Guidelines4

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Fort Washakie

People Served4K

23 results on file

Above Guidelines1

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Kemmerer

People Served3K

112 results on file

Above Guidelines3

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Greybull

People Served3K

67 results on file

Above Guidelines0

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Thermopolis

People Served3K

85 results on file

Above Guidelines3

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Evansville

People Served3K

89 results on file

Above Guidelines2

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Wright

People Served3K

12 results on file

Above Guidelines3

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Glenrock

People Served2K

13 results on file

Above Guidelines5

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Lovell

People Served2K

37 results on file

Above Guidelines2

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Little America

People Served2K

20 contaminants listed, record not matched to an EPA water system

Above Guidelines0

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Lyman

People Served2K

86 results on file

Above Guidelines6

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Ethete

People Served2K

No contaminant results on file

Above Guidelines0

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Pinedale

People Served2K

7 results on file

Above Guidelines2

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Dubois

People Served2K

8 results on file

Above Guidelines1

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Star Valley Ranch

People Served2K

7 results on file

Above Guidelines2

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Saratoga

People Served2K

9 results on file

Above Guidelines2

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Lusk

People Served2K

16 results on file

Above Guidelines5

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Alpine

People Served1K

No contaminant results on file

Above Guidelines0

View Report →

Sundance

People Served1K

85 results on file

Above Guidelines4

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Basin

People Served1K

16 results on file

Above Guidelines1

View Report →

Mountain View

People Served1K

14 results on file

Above Guidelines3

View Report →

Guernsey

People Served1K

84 results on file

Above Guidelines3

View Report →

Upton

People Served1K

88 results on file

Above Guidelines4

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Burns

People Served1K

14 results on file

Above Guidelines4

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Moorcroft

People Served1K

16 results on file

Above Guidelines6

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Ranchester

People Served1K

69 results on file

Above Guidelines0

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Shoshoni

People Served1K

84 results on file

Above Guidelines2

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Byron

People Served1K

14 results on file

Above Guidelines2

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Cokeville

People Served1K

76 results on file

Above Guidelines1

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Lingle

People Served0K

83 results on file

Above Guidelines4

View Report →

Hudson

People Served0K

80 results on file

Above Guidelines2

View Report →

Burlington

People Served0K

59 results on file

Above Guidelines0

View Report →

La Barge

People Served0K

87 results on file

Above Guidelines3

View Report →

Meeteetse

People Served0K

81 results on file

Above Guidelines2

View Report →

East Thermopolis

People Served0K

13 results on file

Above Guidelines3

View Report →

Glendo

People Served0K

81 results on file

Above Guidelines4

View Report →

Pavillion

People Served0K

67 results on file

Above Guidelines0

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Fort Laramie

People Served0K

81 results on file

Above Guidelines5

View Report →

Chugwater

People Served0K

90 results on file

Above Guidelines3

View Report →

Deaver

People Served0K

14 results on file

Above Guidelines2

View Report →

Clearmont

People Served0K

67 results on file

Above Guidelines0

View Report →

Granger

People Served0K

87 results on file

Above Guidelines2

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Yoder

People Served0K

74 results on file

Above Guidelines3

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Shell

People Served0K

4 results on file

Above Guidelines0

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Manderson

People Served0K

14 results on file

Above Guidelines0

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Hyattville

People Served0K

80 results on file

Above Guidelines4

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Opal

People Served0K

88 results on file

Above Guidelines2

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Hartville

People Served0K

82 results on file

Above Guidelines5

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Kirby

People Served0K

13 results on file

Above Guidelines1

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Afton

People Served0K

No contaminant results on file

Above Guidelines0

View Report →

Alcova

People Served0K

No contaminant results on file

Above Guidelines0

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Bear River

People Served0K

No contaminant results on file

Above Guidelines0

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Casper Mountain

People Served0K

No contaminant results on file

Above Guidelines0

View Report →

Clearview Acres

People Served0K

No contaminant results on file

Above Guidelines0

View Report →

F.e. Warren Afb

People Served0K

No contaminant results on file

Above Guidelines0

View Report →

Fox Farm-College

People Served0K

No contaminant results on file

Above Guidelines0

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Grover

People Served0K

4 results on file

Above Guidelines2

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Hartrandt

People Served0K

No contaminant results on file

Above Guidelines0

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South Greeley

People Served0K

No contaminant results on file

Above Guidelines0

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South Park

People Served0K

No contaminant results on file

Above Guidelines0

View Report →

Warren AFB

People Served0K

No contaminant results on file

Above Guidelines0

View Report →

Wilson

People Served0K

No contaminant results on file

Above Guidelines0

View Report →

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