WaterQ

City Water Quality Rankings in Arizona

121 cities ranked by drinking water quality.

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Popular city water quality comparisons

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Trending Cities

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#25
Petrified Forest
County, AZ
76 B
#26
Golden Valley
County, AZ
75 B
#27
Avondale
County, AZ
74 C
#28
Cave Creek
County, AZ
74 C
#29
Glendale
County, AZ
74 C
#30
Queen Valley
County, AZ
74 C
#31
Cottonwood
County, AZ
73 C
#32
Peoria
County, AZ
73 C
#33
Sun Lakes
County, AZ
73 C
#34
Ajo
County, AZ
72 C
#35
Luke Afb
County, AZ
72 C
#36
Vail
County, AZ
72 C
#37
Ash Fork
County, AZ
70 C
#38
Carefree
County, AZ
70 C
#39
El Mirage
County, AZ
69 C
#40
Humboldt
County, AZ
68 C
#41
Kingman
County, AZ
68 C
#42
San Luis
County, AZ
68 C
#43
Scottsdale
County, AZ
68 C
#44
Globe
County, AZ
67 C
#45
Kykotsmovi
County, AZ
67 C
#46
Phoenix
County, AZ
67 C
#47
Tucson
County, AZ
67 C
#48
Eagar
County, AZ
66 C

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.

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