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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#49
Kearny
County, AZ
66 C
#50
Saint David
County, AZ
66 C
#51
Buckeye
County, AZ
65 C
#52
Florence
County, AZ
65 C
#53
Fort Defiance
County, AZ
65 C
#54
Ft Defiance
County, AZ
65 C
#55
Holbrook
County, AZ
65 C
#56
Litchfield Park
County, AZ
65 C
#57
Marana
County, AZ
63 C
#58
Pine
County, AZ
63 C
#59
Queen Creek
County, AZ
63 C
#60
Douglas
County, AZ
61 C
#61
Tolleson
County, AZ
61 C
#62
Gila Bend
County, AZ
60 C
#63
Eloy
County, AZ
58 D
#64
Sierra Vista
County, AZ
58 D
#65
Mesa
County, AZ
57 D
#66
Quartzsite
County, AZ
57 D
#67
Prescott
County, AZ
56 D
#68
Snowflake
County, AZ
55 D
#69
Hotevilla
County, AZ
53 D
#70
Dolan Springs
County, AZ
52 D
#71
Dragoon
County, AZ
52 D
#72
San Tan Valley
County, AZ
52 D

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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