City Water Quality Rankings in Arizona
121 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#97
Chino Valley
County, AZ
17 F
#98 Joseph City
County, AZ
14 F
#99 Winslow
County, AZ
10 F
#100 Whiteriver
County, AZ
5 F
#101 Buckeye
County, AZ
4 F
#102 Gilbert
County, AZ
3 F
#103 Apache Junction
County, AZ
0 F
#104 Cameron
County, AZ
0 F
#105 Fort Mohave
County, AZ
0 F
#106 Fountain Hills
County, AZ
0 F
#107 Fredonia
County, AZ
0 F
#108 Grand Canyon
County, AZ
0 F
#109 Keams Canyon
County, AZ
0 F
#110 Mammoth
County, AZ
0 F
#111 Nogales
County, AZ
0 F
#112 Peach Springs
County, AZ
0 F
#113 Polacca
County, AZ
0 F
#114 Pomerene
County, AZ
0 F
#115 Prescott Valley
County, AZ
0 F
#116 Second Mesa
County, AZ
0 F
#117 Sedona
County, AZ
0 F
#118 Show Low
County, AZ
0 F
#119 Springerville
County, AZ
0 F
#120 Tombstone
County, AZ
0 F
Frequently Asked Questions
How are city water quality rankings calculated in Arizona?
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 Arizona?
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.