City Water Quality Rankings in Utah
136 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#97
St George
County, UT
51 D
#98 Helper
County, UT
50 D
#99 Mountain Green
County, UT
49 D
#100 Roosevelt
County, UT
49 D
#101 Woodland Hills
County, UT
49 D
#102 Bountiful
County, UT
48 D
#103 Beaver
County, UT
46 D
#104 Genola
County, UT
46 D
#105 Altamont
County, UT
44 F
#106 La Verkin
County, UT
44 F
#107 Layton
County, UT
44 F
#108 Eden
County, UT
43 F
#109 Parowan
County, UT
43 F
#110 Aurora
County, UT
42 F
#111 Montua
County, UT
41 F
#112 Smithfield
County, UT
40 F
#113 Cedar City
County, UT
39 F
#114 Wendover
County, UT
39 F
#115 Huntsville
County, UT
38 F
#116 Lehi
County, UT
37 F
#117 Francis
County, UT
34 F
#118 Elwood
County, UT
33 F
#119 East Carbon
County, UT
31 F
#120 Fillmore
County, UT
30 F
Frequently Asked Questions
How are city water quality rankings calculated in Utah?
WaterQ city rankings are based on EPA SDWIS data across local public water systems, including contaminant detections, compliance violations, and recency-weighted score signals.
Can I compare two cities in Utah?
Yes. Use the city comparison links on this page or open the Compare tool to evaluate two cities side by side on score, grade, and water system coverage.
How often does WaterQ refresh city data?
City-level metrics refresh when new EPA data is processed. Check city pages for latest score and violation context.