WaterQ

City Water Quality Rankings in Oklahoma

272 cities ranked by drinking water quality.

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Popular city water quality comparisons

Erick, OK vs Quapaw, OK Compare → Seminole, OK vs Wyandotte, OK Compare → Allen, OK vs Concho, OK Compare → Stillwell, OK vs Tinker Afb, OK Compare →

Trending Cities

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#97
Sallisaw
County, OK
58 D
#98
Stratford
County, OK
58 D
#99
Edmond
County, OK
57 D
#100
Alva
County, OK
56 D
#101
Bethany
County, OK
56 D
#102
Garber
County, OK
56 D
#103
Lone Grove
County, OK
56 D
#104
Webbers Falls
County, OK
56 D
#105
Walters
County, OK
55 D
#106
Indianola
County, OK
54 D
#107
Okeene
County, OK
54 D
#108
Claremore
County, OK
53 D
#109
El Reno
County, OK
53 D
#110
Hooker
County, OK
53 D
#111
Pauls Valley
County, OK
53 D
#112
Gould
County, OK
52 D
#113
Ninnekah
County, OK
52 D
#114
Wilson
County, OK
52 D
#115
Mangum
County, OK
51 D
#116
Durant
County, OK
50 D
#117
Nowata
County, OK
50 D
#118
Oologah
County, OK
50 D
#119
Shawnee
County, OK
50 D
#120
Tahlequah
County, OK
50 D

Frequently Asked Questions

How are city water quality rankings calculated in Oklahoma?

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 Oklahoma?

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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